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Historical Events on September 17


  • 642 Arab forces under Amr ibn al-‘As conquer Alexandria
  • 1048 Battle of Kapetron: night battle between invading Seljuk Turks and Byzantine-Georgian forces of Constantine IX, Byzantines drive back Turks but unable to stop huge plunder

Privilegium Minus

1156 Emperor Frederick I Barbarossa issues the “Privilegium Minus” decree, elevating Austria to a duchy

  • 1176 At the Battle of Myriokephalon, the Byzantines fail to recover Anatolia from Turkish rule

Expulsion of the Jews

1394 Jews are to be expelled from France by order of King Charles VI

  • 1462 Battle of Świecino [Battle of Żarnowiec]: Kingdom of Poland decisively defeats a 2,700-man army of the Teutonic Knights near Krokowa, Poland during the Thirteen Years’ War
  • 1584 Ghent surrenders to Duke of Parma

Succession of Henry IV

1595 Pope Clement VIII recognizes Henry IV as King of France

  • 1598 Dutch sailors claim the island of Mauritius for the Netherlands and name it after Maurice, Prince of Orange and Count of Nassau
  • 1629 Dutch ship Sardam arrives to rescue those shipwrecked on the Batavia off the coast of Western Australia, discovering a group led by Jeronimus Cornelisz has murdered 124 of the survivors [1]
  • 1631 Battle of Breitenfeld: King Gustavus Adolphus of Sweden defeats Johann Tserclaes, Count of Tilly
  • 1644 French troops occupy Mainz
  • 1678 France and Spain sign the Treaties of Nijmegen
  • 1691 Massachusetts Bay Colony granted new charter
  • 1730 Turkish coup under Mahmud I; Sultan Ahmed III flees
  • 1737 Georg-August University opens in Göttingen

Jacobite Rebellion

1745 Edinburgh occupied by Jacobites under Charles Edward Stuart (aka the Young Pretender or Bonny Prince Charlie)

  • 1776 Fortress Presidio of San Francisco is founded in New Spain to gain a foothold in Alta California and the San Francisco Bay
  • 1778 First treaty between the US and Indian tribes is signed at Fort Pitt
  • 1787 Prussian troops conquer Gorinchem

1787 US Constitution is signed by delegates at the Philadelphia Convention

Discovery of Mimas

1789 William Herschel discovers Saturn’s moon Mimas using his 40-foot reflector telescope

  • 1809 Treaty of Fredrikshamn is signed between Sweden and Russia, ending the Finnish War and ceding the territory of Finland to Russia
  • 1819 First whaling ship arrives in Hawaii

Darwin Lands in Galapagos

1835 Charles Darwin lands on Chatham Island in the Galapagos Archipelago

Harriet Tubman Escapes

1849 Harriet Tubman is the first to escape slavery in Maryland with two of her brothers

  • 1850 Fourth great fire in San Francisco

James Donnelly Sentenced

1859 James Donnelly is sentenced to hang for murdering Patrick Farrell, but a petition for clemency reduces his sentence to 7 years in Kingston Penitentiary

Emperor Norton I

1859 Joshua Abraham Norton, an English-born resident of San Francisco, proclaims himself His Imperial Majesty Emperor Norton I, Emperor of the United States of America

  • 1861 First class for escaped slaves taught by Mary Peake at Fortress Monroe Virginia (now Hampton University).
  • 1862 American Civil War: The Allegheny Arsenal explosion results in the single largest civilian disaster during the war; 78 workers killed
  • 1862 Battle of Antietam [Battle of Sharpsburg]: Bloodiest day in the American Civil War with 22,000 dead, wounded, or missing in the first major battle on Union soil
  • 1862 Battle of Munfordville, Kentucky, US Colonel J. Wilder surrenders city
  • 1862 The Cumberland Gap, Tennessee, evacuated by the Union forces
  • 1863 Pope Pius IX’s encyclical On Persecution is published in New Granada
  • 1864 American Civil War: Grant approves Sheridan’s plan for Shenandoah Valley Campaign
  • 1871 Mont Cenis railway tunnel in Switzerland opens
  • 1872 Phillip W. Pratt patents his sprinkler system for extinguishing fires
  • 1873 Nineteen students attend the opening class at Ohio State University
  • 1876 Race riots in South Carolina
  • 1899 First British troops leave Bombay for South Africa
  • 1900 In the USA, anthracite coal miners go on strike for better wages until October 25, by which time the owners are persuaded that their stance is harming President McKinley’s campaign
  • 1900 Philippine–American War: Filipinos under Juan Cailles defeat Americans under Colonel Benjamin F. Cheatham at Mabitac
  • 1900 The Commonwealth of Australia is proclaimed

Battle of Elands River

1901 Battle at Elands River Port: Boer General Jan Smuts destroys British 17th Lancers unit

Battle of Blood River Port

1901 Battle of Blood River Port: Boer commandos led by Louis Botha defeat a British Mounted Infantry force commanded by Major Hubert Gough

  • 1902 US protests anti-semitism in Romania
  • 1903 Boston Pilgrims clinch AL pennant, beating Cleveland 14-3
  • 1906 Playing as “Sullivan,” Columbia University junior Eddie Collins debuts with the A’s
  • 1908 Thomas Selfridge becomes first fatality of powered flight
  • 1909 Denis Peyrony and Louis Capitan discover the skull of an adult male Neanderthal (La Ferrassie 1) during excavations in a rock shelter near La Ferrassie, France
  • 1911 First airplane flight across the US from New York to Pasadena, California, in 82 hours and 4 minutes
  • 1912 Center fielder Casey Stengel debuts with Brooklyn and hits four singles

Fisher Re-elected PM

1914 Andrew Fisher becomes Prime Minister of Australia for the third time

  • 1916 40,000 Amsterdam demonstrators demand general voting right

The Red Baron

1916 World War I flying ace, the Red Baron of the German Luftstreitkräfte, wins his first aerial combat near Cambrai, France

Pirates Retire #33

1917 American baseball shortstop Honus Wagner retires at 43; Pirates retire his #33

  • 1920 Cardinals set a record of 12 consecutive hits in the 4th (10) and 5th (2) innings
  • 1920 National Football League is born in Canton, Ohio; 12 teams pay $100 each to join American Professional Football Association; renamed the NFL in 1922
  • 1923 Sutton Vane’s “Outward Bound” premieres in London
  • 1924 Italy signs treaty of Rapallo
  • 1926 Hurricane hits Miami and Palm Beach, Florida, killing approximately 450
  • 1927 Charles Lindbergh visits San Francisco
  • 1928 Boston Braves pitcher Ray Boggs hits three batters in one inning during his fourth and final major league appearance in a 15-5 loss to the Chicago Cubs
  • 1928 San Felipe Segundo/Okeechobee hurricane makes landfall in West Palm Beach-Lake Okeechobee, Florida, as a Category 4 storm, killing 2,500-3,000 and causing $25 million in damages
  • 1929 British troops begin withdrawal from occupied Germany
  • 1931 Boston Red Sox outfielder Earl Webb sets a record with 65 doubles en route to 67 MLB doubles
  • 1931 First LP record demonstrated by RCA Victor in New York City; venture fails
  • 1931 Operetta “Viktoria & Her Hussar” by Paul Abraham (adapted for English by Harry Graham) premieres in London at the Palace Theatre

First LP Record Released

1934 RCA Victor releases the first 33 1/3 rpm recording: Beethoven‘s Fifth Symphony performed by the Philadelphia Orchestra, led by Leopold Stokowski at the Philadelphia Academy of Music

  • 1934 USSR joins League of Nations (Netherlands, Switzerland, and Portugal vote no)

President Manuel L. Quezon

1935 Manuel L. Quezon y Molina is elected the second President of the Philippines

  • 1937 First NFL game in Washington, D.C.; Redskins defeat NY Giants 13-3
  • 1939 German U-29 sinks British aircraft carrier Courageous; 519 die
  • 1939 Poland’s President Ignacy Mościcki and Prime Minister Felicjan Sławoj Składkowski flee to Romania
  • 1939 Soviet Union invades Eastern Poland, allowing Germans to advance west and taking 217,000 Poles prisoner without a formal declaration of war
  • 1939 Taisto Mäki of Finland becomes the first man to run 10,000 meters in under 30 minutes with a time of 29:52.6 in Helsinki

Operation Sealion Postponed

1940 Adolf Hitler indefinitely postpones Operation Sealion, the planned German invasion of Great Britain

  • 1940 Nazi police commander Heinrich Himmler rules that all Polish workers must wear yellow “P” badges to distinguish themselves from Germans

Bohr Meets Heisenberg

1941 Meeting between Danish physicist Niels Bohr and German head of the nuclear energy project Werner Heisenberg in Copenhagen to discuss nuclear weapons

  • 1941 Stan Musial makes his major league debut for the St. Louis Cardinals, going 2-for-4
  • 1941 The New Zealand Labour Party abolishes the death penalty; it is reintroduced by the National government in 1950 before being finally removed from the statute book in 1961)
  • 1941 World War II: A decree issued by the Soviet State Committee of Defense, restoring Vsevobuch “Universal compulsory military training of the citizens of the USSR” in the face of the “Great Patriotic War”
  • 1943 Load of “ammunition in transit” explodes at Norfolk Naval Air Station
  • 1943 World War II: Soviet city of Bryansk is liberated from Nazi control
  • 1944 British Prime Minister Winston Churchill travels to US
  • 1944 Dutch begin railroad strike against German occupiers
  • 1944 Operation Market Garden: In the largest airborne operation of WWII, Allied paratroopers land in the Netherlands in a failed attempt to capture the Arnhem bridge over the Rhine
  • 1947 Jackie Robinson is named Rookie of the Year by Sporting News
  • 1947 James Forrestal sworn in as first US Secretary of Defense
  • 1948 KCOP TV Channel 13 in Los Angeles/Hollywood, CA (IND) begins broadcasting
  • 1948 WLS TV Channel 7 in Chicago, IL (ABC) begins broadcasting
  • 1949 128 die as fire engulfs Canadian passenger steamer Noronic in Toronto
  • 1949 North Atlantic Treaty Council meets for the first time
  • 1949 Third Cannes Film Festival: “The Third Man,” directed by Carol Reed, wins the Grand Prix du Festival International du Film
  • 1949 WFAA TV Channel 8 in Dallas-Fort Worth, TX (ABC) begins broadcasting
  • 1950 San Francisco 49ers (formerly AAFC) play their first NFL game and lose 21-17
  • 1951 Romanian bishop A. Pacha of Timisoara sentenced to 18 years
  • 1952 “I Am an American Day” and “Constitution Day” are renamed “Citizenship Day”
  • 1953 Ernie Banks becomes the Chicago Cubs’ first African American player

Lord of the Flies

1954 “Lord of the Flies” by William Golding is published by Faber and Faber in London

Marciano KOs Charles

1954 In a quick rematch at Yankee Stadium, NYC, Rocky Marciano knocks out Ezzard Charles in the eighth round to retain his world heavyweight boxing title

  • 1955 Future MLB Hall of Famer Baltimore Oriole Brooks Robinson goes 2-4 in his first game
  • 1956 Black students enter Clay Elementary School in Kentucky
  • 1956 Television is first broadcast in Australia
  • 1956 Yankees clinch pennant number 22 with Mantle’s 50th home run of the year
  • 1957 KETV TV Channel 7 in Omaha, NB (ABC) begins broadcasting
  • 1957 Thailand military coup under Marshal Sarit Thanarat
  • 1957 The North East Humanists group is founded in Newcastle upon Tyne
  • 1958 US performs a nuclear test at Nevada Test Site
  • 1959 Scott Crossfield completes the first powered flight in the X-15
  • 1959 Transit 1A, the first navigational satellite, launches but fails to orbit
  • 1959 Typhoon kills 2,000 in Japan and Korea
  • 1960 Cuba nationalizes US banks
  • 1961 “Car 54, Where are You?” premieres on US TV

1961 Fran Tarkenton plays his first NFL game against the Chicago Bears, coming off the bench to lead the Vikings to a 37-13 victory and becomes the only QB to throw four touchdown passes in his first career game

  • 1961 Minnesota Vikings’ first NFL game; beat Chicago Bears 37-13
  • 1961 USSR performs a nuclear test at the Semipalatinsk Test Site in northeastern Kazakhstan
  • 1962 Justice Department files first suit to end segregation in public schools
  • 1962 US space officials announce selection of nine new astronauts
  • 1963 “The Fugitive,” starring David Janssen, premieres on ABC TV
  • 1963 Train strikes makeshift bus full of migrant workers, killing 32

Baby Love

1964 Motown Records releases The Supremes‘ single “Baby Love”; written and produced by the Holland-Dozier-Holland team, it becomes their second consecutive #1 record

  • 1964 National Museum of Anthropology, the largest museum in Latin America, inaugurated by President Adolfo López Mateos in Mexico City [1]
  • 1964 The Beatles are paid a record $150,000 by baseball team owner Charles Finley for a concert at Municipal Stadium in Kansas City, Missouri, on a scheduled day off; the group adds the song “Kansas City”/”Hey, Hey, Hey, Hey” to their standard setlist, much to the delight of the crowd
  • 1964 Yankee Mickey Mantle gets career hits #1999, 2000, and 2001 and his 450th home run in a 6-2 victory over the Los Angeles Angels in New York
  • 1965 CBS premieres WWII sitcom “Hogan’s Heroes”
  • 1965 WPHL TV Channel 17 in Philadelphia, PA (IND) begins broadcasting
  • 1966 “Mission Impossible” premieres on CBS-TV
  • 1966 Cleveland pitchers set an AL record by striking out 19 batters in the first 9 innings

The Doors On Ed Sullivan

1967 American rock band “The Doors” appear for the first and last time on “The Ed Sullivan Show” as singer Jim Morrison reneges on a promise to change a lyric, prompting producers to offer no further invitations [1]

The Who in TV Debut

1967 British rock band “The Who” makes its US television debut, performing “My Generation” on “The Smothers Brothers Comedy Hour” and detonating an unusually large amount of flash powder in Keith Moon‘s drum kit [1]

  • 1967 Mount Washington Cog Railway train derails, killing 8 (NH)
  • 1967 New Orleans Saints’ first NFL game; they lose to the LA Rams 27-13
  • 1968 San Francisco Giants Gaylord Perry no-hits St Louis Cardinals 1-0
  • 1968 Zond 5 completes circumnavigation of Moon
  • 1970 American TV variety program “The Flip Wilson Show” debuts on NBC-TV and runs for four seasons, winning two Emmy Awards
  • 1970 Jordan launches offensive against guerrilla army
  • 1970 WSWP TV channel 9 in Grandview, WV (PBS) begins broadcasting
  • 1972 BART begins passenger service in San Francisco
  • 1972 Tanzanian troops march into Uganda

M*A*S*H

1972 TV comedy series “M*A*S*H”, adapted from the movie, starring Alan Alda, Loretta Swit, Wayne Rogers, and McLean Stevenson, debuts on CBS in the US and runs for 11 years, garnering 14 Emmy Awards and 1 Peabody

A Little Night Music

1973 Stephen Sondheim‘s musical “A Little Night Music” transfers from the Shubert to the Majestic Theatre, NYC

  • 1974 Courageous (US) beats Southern Cross (Australia) in the 23rd America’s Cup
  • 1976 Amnesty International receives the Erasmus Prize

Sex Pistols Play Prison

1976 British punk rock band the Sex Pistols play before a captive audience at Chelmsford Prison, Essex, England

  • 1976 NASA publicly unveils the Space Shuttle Enterprise in Palmdale, California, named after the Star Trek Enterprise, with the cast attending

Ringo’s Rotogravure

1976 Polydor/Atlantic releases Ringo Starr‘s fifth studio album “Ringo’s Rotogravure”

Rumours

1977 British-American band Fleetwood Mac‘s “Rumours” album is #1 for the 19th consecutive week

  • 1977 China performs nuclear test at Lop Nor, PRC
  • 1977 Dave Kingman hits his first Yankee home run, and Reggie hits two more
  • 1978 30th Emmy Awards: “All in the Family,” Ed Asner, and Sada Thompson win
  • 1978 After 6 losses to the New York Yankees in September, the Boston Red Sox finally score a 7-3 win over their arch rivals at Yankee Stadium
  • 1979 Pietro Mennea runs a world record 200 m in 19.72 seconds
  • 1979 Royals’ George Brett becomes the 6th player to have 20 doubles, triples, and home runs in a season
  • 1979 Russian Bolshoi Ballet dancers Leonid and Valentina Kozlov granted political asylum in US

Divine Madness

1980 Bette Midler‘s concert film “Divine Madness,” directed by Michael Ritchie, premieres

  • 1980 Iraq breaks the 1975 treaty with Iran and proclaims sovereignty over the Shatt al-Arab waterway
  • 1980 Iraq under Saddam Hussein signs accord with Algeria
  • 1980 Oakland A’s Rick Langford is removed with two outs in the ninth inning, ending his consecutive complete-game streak at 22

Solidarity Movement

1980 Polish workers, under the leadership of Lech Wałęsa, found the Solidarity movement at the Gdańsk Shipyard

Kim Dae-jung Sentenced

1980 South Korean opposition leader Kim Dae-jung sentenced to death on false charges of sedition and conspiracy (sentence later commuted)

  • 1983 Chicago White Sox clinch their first-ever AL West championship
  • 1984 Dwight Gooden ties the record of 32 strikeouts in consecutive games
  • 1984 Reggie Jackson is the 13th player to hit 500 home runs
  • 1984 USSR performs an underground nuclear test
  • 1985 Soyuz T-14 carries 3 cosmonauts to Salyut 7 space station
  • 1986 Bomb attack in Paris kills 6 people
  • 1986 Marina Stepanova of USSR sets the women’s 400 m hurdle record in 52.94 seconds
  • 1986 Mets clinch NL East Championship
  • 1986 US Senate confirms William Rehnquist as 16th Chief Justice
  • 1987 Philadelphia celebrates 200th anniversary of Constitution

Pope Visits San Francisco

1987 Pope John Paul II arrives in San Francisco, meets with AIDS patients, and embraces an AIDS-infected child

  • 1988 24th Olympic games open at Seoul, South Korea
  • 1988 Jeff Reardon becomes the first pitcher to record 40 or more saves in both the American League and the National League
  • 1989 41st Emmy Awards: “LA Law,” “Cheers,” Dana Delany, and Candice Bergen win
  • 1989 Hurricane Hugo begins four-day sweep through Caribbean, killing 62
  • 1989 Hurricane Hugo kills 85 in Charleston, South Carolina
  • 1989 The NYC Court of Appeals overturns the lower court decision and returns the America’s Cup to the US from New Zealand
  • 1990 Newspaper Guild votes 242-35 to keep NY Post publishing
  • 1990 Soviet Union and Saudi Arabia restore diplomatic ties
  • 1991 4,355 turn out to see Expos play NY Mets at Shea Stadium
  • 1991 The first version of the Linux kernel (0.01) is released to the Internet
  • 1991 UN admits Estonia, Latvia, Lithuiania, North & South Korea, Marshall Islands & Micronesia
  • 1992 Amsterdam Stock Exchange hits record €8.8 billion

Zappa Conducts The Yellow Shark

1992 Frank Zappa conducts The Ensemble Modern in portions of his classical work “The Yellow Shark” in Frankfurt, Germany; receives a 20-minute standing ovation in what is his last public appearance

  • 1992 House votes 280 to 128 to give FCC control over cable TV rates
  • 1992 The NFL decides to suspend World League Football
  • 1992 Theodore (Ted) Weiss wins the Democratic primary for the NYC congressional seat despite having died on the 14th
  • 1993 Last Russian troops leave Poland
  • 1994 Andy Waller outhandles the ball for Mashonaland CD against Mash U24

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What Happened on September 17


Major Events

  • 1862 Battle of Antietam [Battle of Sharpsburg]: Bloodiest day in the American Civil War with 22,000 dead, wounded, or missing in the first major battle on Union soil
  • 1916 World War I flying ace, the Red Baron of the German Luftstreitkräfte, wins his first aerial combat near Cambrai, France
  • 1940 Adolf Hitler indefinitely postpones Operation Sealion, the planned German invasion of Great Britain
  • 1978 Anwar Sadat, Menachem Begin, and Jimmy Carter sign the Camp David Accords, frameworks for peace in the Middle East and between Egypt and Israel

More September 17 Events

Sep 17 in Film & TV

  • 1972 TV comedy series “M*A*S*H”, adapted from the movie, starring Alan Alda, Loretta Swit, Wayne Rogers, and McLean Stevenson, debuts on CBS in the US and runs for 11 years, garnering 14 Emmy Awards and 1 Peabody

Sep 17 in Music

  • 1964 The Beatles are paid a record $150,000 by baseball team owner Charles Finley for a concert at Municipal Stadium in Kansas City, Missouri, on a scheduled day off; the group adds the song “Kansas City”https://www.onthisday.com/”Hey, Hey, Hey, Hey” to their standard setlist, much to the delight of the crowd

Sep 17 in Sport

  • 1941 Stan Musial makes his major league debut for the St. Louis Cardinals, going 2-for-4

Did You Know?

NASA publicly unveils the Space Shuttle Enterprise in Palmdale, California, named after the Star Trek Enterprise, with the cast attending

September 17, 1976


Fun Fact About September 17

Joshua Abraham Norton, an English-born resident of San Francisco, proclaims himself His Imperial Majesty Emperor Norton I, Emperor of the United States of America

September 17, 1859

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Insects Are Disappearing Even From “Untouched” Landscapes, Study Warns


Dead Bee
A long-term study shows that insect populations are collapsing even in pristine mountain habitats, pointing to climate change as a key driver of biodiversity loss. Credit: Shutterstock

Insects in remote ecosystems are declining rapidly. Climate change is likely the cause.

A recent investigation by the University of North Carolina at Chapel Hill has revealed that insect numbers are falling sharply, even in landscapes with little direct human disturbance. This trend raises serious concerns for the stability of ecosystems that rely on insects for essential functions.

Keith Sockman, an associate professor of biology at UNC-Chapel Hill, monitored flying insect populations across 15 field seasons between 2004 and 2024 in a subalpine meadow in Colorado. The site provided 38 years of weather records and had experienced minimal human impact. His analysis showed an average annual reduction of 6.6% in insect abundance, which adds up to a 72.4% loss over two decades. The decline was strongly linked to rising summer temperatures.

Ecological importance of insects

“Insects have a unique, if inauspicious position in the biodiversity crisis due to the ecological services, such as nutrient cycling and pollination, they provide and to their vulnerability to environmental change,” Sockman said. “Insects are necessary for terrestrial and freshwater ecosystems to function.”

Colorado Meadow
Colorado meadow used for Keith Sockman’s 20 year study. Credit: Keith Sockman (UNC-Chapel Hill)

These results help fill an important gap in global insect research. Although many studies on insect decline emphasize ecosystems heavily altered by humans, far fewer have looked at populations in largely untouched environments. This work shows that sharp declines can still happen in such areas, pointing to climate change as a likely driving factor.

“Several recent studies report significant insect declines across a variety of human-altered ecosystems, particularly in North America and Europe,” Sockman said. “Most such studies report on ecosystems that have been directly impacted by humans or are surrounded by impacted areas, raising questions about insect declines and their drivers in more natural areas.”

Mountain ecosystems at risk

Sockman emphasizes the urgency of these results for biodiversity conservation: “Mountains are host to disproportionately high numbers of locally adapted endemic species, including insects. Thus, the status of mountains as biodiversity hotspots may be in jeopardy if the declines shown here reflect trends broadly.”

This research highlights the need for more comprehensive monitoring of insect populations in a variety of landscapes and adds urgency to addressing climate change. By showing that even remote ecosystems are not immune, the study underscores the global scale of the biodiversity crisis.

Reference: “Long-term decline in montane insects under warming summers” by Keith W. Sockman, 4 September 2025, Ecology.
DOI: 10.1002/ecy.70187

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Strange “Halos” on the Ocean Floor off Los Angeles Reveal a Toxic Secret


Discarded Barrel on the Seafloor off the Coast of Los Angeles
A discarded barrel on the seafloor off the coast of Los Angeles. The image was taken during a survey in July 2021 by remotely operated vehicle SuBastian. Credit: Schmidt Ocean Institute

Once believed to contain the pesticide DDT, new analysis shows some barrels actually held caustic alkaline waste.

In 2020, striking photographs revealed rusted barrels scattered across the seafloor near Los Angeles, capturing widespread attention. At first, the corroded containers were suspected to hold residues of the pesticide DDT, especially since some were surrounded by pale, halo-like rings in the sediment. Yet the actual contents of the barrels, as well as the cause of the strange halos, remained uncertain.

Research led by UC San Diego’s Scripps Institution of Oceanography has since clarified that the halo-producing barrels contained caustic alkaline waste, which seeped out and altered the surrounding environment. While the study could not determine the precise compounds inside, it noted that DDT production produced both alkaline and acidic byproducts. In addition, other major industries in the area, including oil refining, were known to release large amounts of alkaline waste.

“One of the main waste streams from DDT production was acid, and they didn’t put that into barrels,” said Johanna Gutleben, a Scripps postdoctoral scholar and the study’s first author. “It makes you wonder: What was worse than DDT acid waste to deserve being put into barrels?”

SuBastian Collecting Sediment Push Cores
Researchers use Remotely Operated Vehicle SuBastian to collect sediment push cores next to barrels discarded on the seafloor. Credit: Schmidt Ocean Institute

Toxic transformations of the seafloor

The research showed that leaking alkaline waste reshaped parts of the seafloor into harsh habitats resembling natural hydrothermal vents — environments that host specialized microbes capable of surviving where most organisms cannot. According to the study’s authors, the scale and intensity of these impacts on marine ecosystems depend on both the number of barrels resting on the seafloor and the particular chemicals they released.

Even with these uncertainties, Paul Jensen, a Scripps emeritus marine microbiologist and the study’s senior author, explained that he had assumed such alkaline material would quickly dilute in seawater. Instead, it has remained intact for more than fifty years, leading him to conclude that this waste “can now join the ranks of DDT as a persistent pollutant with long-term environmental impacts.”

Released on September 9, 2025, in the Proceedings of the National Academy of Sciences Nexus and backed by NOAA along with the University of Southern California’s Sea Grant program, the study adds to Scripps’ longstanding efforts to investigate the toxic legacy of once-permitted dumping in Southern California’s offshore waters. The results also offer a visual method to distinguish barrels that once carried this alkaline waste.

“DDT was not the only thing that was dumped in this part of the ocean and we have only a very fragmented idea of what else was dumped there,” said Gutleben. “We only find what we are looking for and up to this point we have mostly been looking for DDT. Nobody was thinking about alkaline waste before this and we may have to start looking for other things as well.”

Video footage from ROV SuBastian’s exploration around the DDT Barrel Site 1 in the Southern California Borderland off the coast of Los Angeles. Credit: Schmidt Ocean Institute

Ocean dumping legacy in California

From the 1930s through the early 1970s, 14 deep-water dumping grounds off the coast of Southern California were used to dispose of “refinery wastes, filter cakes and oil drilling wastes, chemical wastes, refuse and garbage, military explosives and radioactive wastes,” according to the EPA. Seafloor surveys led by Scripps in 2021 and 2023 documented thousands of discarded objects, including hundreds of military munitions. The total number of barrels lying on the ocean floor is still unknown. Sediments in this region are heavily contaminated with DDT, a pesticide banned in 1972 and now recognized as dangerous to both humans and wildlife. Sparse records from the period suggest that most DDT waste was discharged directly into the sea.

Gutleben said she and her co-authors didn’t initially set out to solve the halo mystery. In 2021, aboard the Schmidt Ocean Institute’s Research Vessel Falkor, she and other researchers collected sediment samples to better understand the contamination near Catalina. Using the remotely operated vehicle (ROV) SuBastian, the team collected sediment samples at precise distances from five barrels, three of which had white halos.

The barrels featuring white halos presented an unexpected challenge: Inside the white halos the sea floor suddenly became like concrete, preventing the researchers from collecting samples with their coring devices. Using the ROV’s robotic arm, the researchers collected a piece of the hardened sediment from one of the halo barrels.

Paul Jensen and Johanna Gutleben
Paul Jensen and Johanna Gutleben of UC San Diego’s Scripps Institution of Oceanography unload and sort sediment cores after the samples were brought to the surface from known dumping sites by Remotely Operated Vehicle (ROV) SuBastian during a July 2021 expedition aboard Research Vessel Falkor. Credit: Schmidt Ocean Institute

Testing for DDT and microbes

The team analyzed the sediment samples and the hardened piece of halo barrel crust for DDT concentrations, mineral content and microbial DNA. The sediment samples showed that DDT contamination did not increase closer to the barrels, deepening the mystery of what they contained.

During the analysis, Gutleben struggled to extract microbial DNA from the samples taken through the halos. After some unsuccessful troubleshooting in the lab, Gutleben tested one of these samples’ pH. She was shocked to find that the sample’s pH was extremely high — around 12. All the samples from near the barrels with halos turned out to be similarly alkaline. (An alkaline mixture is also known as a base, meaning it has a pH higher than 7 — as opposed to an acid which has a pH less than 7).

This explained the limited amount of microbial DNA she and her colleagues had been able to extract from the halo samples. The samples turned out to have low bacterial diversity compared to other surrounding sediments and the bacteria came from families adapted to alkaline environments, like deep-sea hydrothermal vents and alkaline hot springs.

Analysis of the hard crust showed that it was mostly made of a mineral called brucite. When the alkaline waste leaked from the barrels, it reacted with magnesium in the seawater to create brucite, which cemented the sediment into a concrete-like crust. The brucite is also slowly dissolving, which maintains the high pH in the sediment around the barrels, and creates a place only few extremophilic microbes can survive. Where this high pH meets the surrounding seawater, it forms calcium carbonate that deposits as a white dust, creating the halos.

Kira Mizell, Johanna Gutleben, Paul Jensen, Devin Vlach, Michelle Guraieb, Lisa Levin
Photo of DDT Dumpsite Sediment core processing team. From left to right: Kira Mizell (USGS), Johanna Gutleben, Paul Jensen, Devin Vlach, Michelle Guraieb, Lisa Levin. Credit: Brady Lawrence for Schmidt Ocean Institute

Lasting ecological consequences

“This adds to our understanding of the consequences of the dumping of these barrels,” said Jensen. “It’s shocking that 50-plus years later you’re still seeing these effects. We can’t quantify the environmental impact without knowing how many of these barrels with white halos are out there, but it’s clearly having a localized impact on microbes.”

Prior research led by Lisa Levin, study co-author and emeritus biological oceanographer at Scripps, showed that small animal biodiversity around the barrels with halos was also reduced. Jensen said that roughly a third of the barrels that have been visually observed had halos, but it’s unclear if this ratio holds true for the entire area and it remains unknown just how many barrels are sitting on the seafloor.

The researchers suggest using white halos as indicators of alkaline waste could help rapidly assess the extent of alkaline waste contamination near Catalina. Next, Gutleben and Jensen said they are experimenting with DDT contaminated sediments collected from the dump site to search for microbes capable of breaking down DDT.

The slow microbial breakdown the researchers are now studying may be the only feasible hope for eliminating the DDT dumped decades ago. Jensen said that trying to physically remove the contaminated sediments would, in addition to being a huge logistical challenge, likely do more harm than good.

“The highest concentrations of DDT are buried around 4 or 5 centimeters below the surface — so it’s kind of contained,” said Jensen. “If you tried to suction that up you would create a huge sediment plume and stir that contamination into the water column.”

Reference: “Extremophile hotspots linked to containerized industrial waste dumping in a deep-sea basin” by Johanna Gutleben, Sheila Podell, Kira Mizell, Douglas Sweeney, Carlos Neira, Lisa A Levin and Paul R Jensen, 9 September 2025, PNAS Nexus.
DOI: 10.1093/pnasnexus/pgaf260

This research was funded by the National Oceanographic and Atmosheric Administration award nos. NA23NMF4690462 and NA22OAR4690679 to P.R.J. and L.A.L. and the University of Southern California Sea Grant award SCON-00003146 to L.A.L.

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Contrary to Popular Belief, Yoga Isn’t the Best for Your Arteries


Meditation Yoga Woman
Contrary to popular belief, yoga may fall short of other forms of exercise in boosting vascular health. The study suggests mixing yoga with structured workouts may be the key to stronger, more resilient arteries. Credit: Shutterstock

Yoga helps, but structured exercise works better for vascular health. Consistency and exercise type are key factors.

Contrary to popular belief, yoga may not be as effective as traditional forms of exercise in improving vascular health, according to new research published in Advances in Integrative Medicine.

The study reviewed a wide range of existing evidence, including randomized controlled trials, crossover trials, and non-randomized studies, to compare the effects of yoga with other exercise routines in sedentary adults.

The researchers emphasized that their goal was to evaluate how these different activities influence vascular function, using ultrasound as the primary measurement tool.

Understanding vascular function

Vascular function describes how well blood vessels can deliver blood to tissues throughout the body. Their flexibility and ability to expand and contract are key indicators of cardiovascular health.

A sedentary lifestyle and long periods of sitting are known to impair vascular performance, raising the risk of hypertension, cholesterol accumulation, and blood clots.

Co-author Dr. Leena David, a specialist in medical diagnostic imaging and lecturer at the University of Sharjah, says, “Think of blood vessels like flexible garden hoses. If they stiffen, the risk of heart attacks and strokes increases. Our study shows that structured exercise keeps those hoses flexible, while yoga provides some benefits but not as reliably. Middle-aged and older adults often notice improvements from yoga, but younger adults might not.”

These results are especially significant for the roughly 300 million people worldwide who practice yoga and the more than 620 million living with cardiovascular disease as of 2023.

The researchers determined that conventional forms of exercise, including Tai Chi, Pilates, and high-intensity interval training, provide more consistent improvements in vascular function than yoga for sedentary individuals.

Movement as the antidote

Dr. David emphasizes that while movement is essential, the type, intensity, and consistency of physical activity are key determinants of vascular health.

“Even simple routines can make arteries more resilient. Blood vessels have a memory—and every workout helps them forget the damage of sitting all day,” she adds.

She also describes prolonged sitting as “the new smoking—silent, sneaky, and stealing years from your arteries,” adding that “movement is the perfect antidote.”

Cultural role of yoga

While yoga remains accessible and culturally significant, the study suggests that individuals seeking consistent cardiovascular benefits may need to supplement yoga with more vigorous forms of exercise.

The authors advocate for a nuanced approach to physical activity, especially in public health messaging.

“Yoga has deep cultural roots and shows promise as an inclusive, accessible health intervention,” Dr. David notes.

“At the same time, the fitness and digital health industries can leverage these insights to develop structured exercise programs and technology-driven solutions for sedentary populations.”

The researchers hope their findings will encourage healthcare providers to recommend exercise not only for weight management but also as a proven strategy for improving vascular health.

Although yoga may not consistently enhance vascular function, it remains a valuable option, particularly for older adults and those unable or unwilling to engage in high-intensity workouts.

“On a larger scale, public health campaigns could emphasize that movement is medicine,” Dr. David explains. “This may encourage a mix of exercise and yoga to make heart health more accessible and culturally appropriate.

Forget the fitness goals—this is about protecting your body’s internal GPS system that keeps you alive.”

Reference: “Comparing the effects of yoga and exercise on vascular function: A systematic review” by Poovitha Shruthi Paramashiva, Suresh Sukumar, Dilip Shettigar, Rajagopal Kadavigere, Abhimanyu Pradhan, Nitika C. Panakkal, Winniecia Dkhar, K. Vaishali, Baskaran Chandrasekaran, Hari Prakash Palaniswamy, Sneha Ravichandran, Sathya Sabina Muthu, Koustubh Kamath, Haris Jose Felix, Anam Shazli and Leena R. David, 15 July 2025, Advances in Integrative Medicine.
DOI: 10.1016/j.aimed.2025.100556

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This Special Diet May Slow Brain Aging, Harvard Study Reveals


Green Tea and Walnuts
The green-MED diet is a modified Mediterranean diet enriched with high-polyphenol foods, including walnuts, Mankai (cultivated duckweed), and green tea, while reducing red and processed meat intake. Credit: Shutterstock

The green-Mediterranean diet may protect against brain aging by reducing protein markers linked to cognitive decline.

Adopting a green-Mediterranean diet, which incorporates green tea and the aquatic plant Mankai, has been linked to slower brain aging, according to recent research.

The study, published in the journal Clinical Nutrition, was conducted by scientists from Ben-Gurion University, the Harvard T.H. Chan School of Public Health, and the University of Leipzig.

Investigating diet and brain age

Neurological disorders such as mild cognitive impairment and Alzheimer’s disease are often associated with an increased brain age gap, meaning the brain appears biologically older than a person’s actual age. To explore whether diet could influence this process, researchers examined data from nearly 300 participants in the DIRECT PLUS trial, one of the most extensive long-term studies on diet and brain health.

Over an 18-month period, participants followed one of three diets: a standard healthy diet; a traditional calorie-restricted Mediterranean diet, which limited simple carbohydrates, emphasized vegetables, and replaced red meat with poultry and fish; or the green-Mediterranean diet, which included all of the above along with green tea and Mankai.

When the researchers measured protein levels in the participants’ blood, they found that higher levels of certain proteins were associated with accelerated brain aging. Further, they found that those protein levels decreased in participants who followed the green-Mediterranean diet. The researchers hypothesized that the protective effect of the diet could be a result of the anti-inflammatory molecules contained in green tea and Mankai.

A dynamic view of brain health

“Studying the circulating proteins in blood allows us to observe, in a real-life setting, how the brain’s aging processes are influenced by lifestyle and dietary changes,” said Anat Meir, postdoctoral research fellow at Harvard Chan School, who co-led the study. “This approach gives us a dynamic window into brain health, helping to reveal biological changes long before symptoms may appear. By mapping these protein signatures, we gain powerful new insight into how interventions, such as diet, may help preserve cognitive function as we age.”

Reference: “Serum Galectin-9 and Decorin in relation to brain aging and the green-Mediterranean diet: A secondary analysis of the DIRECT PLUS randomized trial” by Dafna Pachter, Anat Yaskolka Meir, Alon Kaplan, Gal Tsaban, Hila Zelicha, Ehud Rinott, Gidon Levakov, Ofek Finkelstein, Ilan Shelef, Moti Salti, Frauke Beyer, Veronica Witte, Nora Klöting, Berend Isermann, Uta Ceglarek, Tammy Riklin Raviv, Matthias Blüher, Michael Stumvoll, Dong D. Wang, Frank B. Hu and Iris Shai, 23 August 2025, Clinical Nutrition.
DOI: 10.1016/j.clnu.2025.08.021

This study was supported by the German Research Foundation (DFG) project number 209933838 (SFB 1052; B11) (to I Shai); the Israel Ministry of Health grant 87472511 (to I Shai); the Israel Ministry of Science and Technology grant 3-13604 (to I Shai); and the California Walnut Commission (to I Shai).

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Complete New Copy Of The Canopus Decree Of King Ptolemy III Unearthed In Egypt


Conny Waters – AncientPages.com – The Egyptian Archaeological Mission of the Supreme Council for Archaeological and Workers at the site of the Pharaoh Hill in Husseinia in the Eastern Province, has revealed a new and complete version of the Canopus Decree of King Ptolemy III. This decree is considered one of the most important royal texts from the Ptolemaic period, offering valuable insights into the historical and cultural context of that era.

Complete New Copy Of The Canopus Decree Of King Ptolemy III Discovered In Egypt

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A significant archaeological discovery has been made at the site of Tell El-Faraun in Husseiniya, Sharqiya Governorate: a sandstone stela entirely inscribed with hieroglyphs. This artifact, dating back to 238 BC, details a decree issued by priests in Canopus to honor King Ptolemy III, his wife Berenice, and their daughter. This find is considered the most important of its kind in over 150 years. Previously, only six versions of the Canopus Decree were known—some complete and others fragmentary—found at locations such as Kom El-Hisn, Tanis, and Tell Basta.

The importance of the disclosure of being a new complete copy of the Decree of Canope comes in addition to six previously known copies, one complete and another incomplete, which were discovered at the sites of Fortress Kom, San Stone, and Basta, in hieroglyphic writing only, unlike the other copies which were triloglyphic, Demotic, and Greek.

, unlike earlier examples that were inscribed in three scripts—hieroglyphic, Demotic, and Greek—is written exclusively in hieroglyphs. This provides scholars with a unique opportunity to examine the decree in its most elevated and sacred form.

Sherif Fathy, the Minister of Tourism and Antiquities, stated that this discovery significantly enhances our comprehension of Egypt’s history and heritage. Furthermore, it underscores the archaeological significance of Sharqiya, a governorate known for its potential to reveal remarkable treasures to the world.

“To uncover a complete and new version of the Canopus Decree after more than a century and a half is remarkable,” said Mohamed Ismail Khaled, Secretary-General of the Supreme Council of Antiquities. “It will deepen our knowledge of royal and religious texts from the Ptolemaic era and enrich our understanding of the Egyptian language and culture of the time.”

This significant artifact, measures 127.5 cm in height, 83 cm in width, and about 48 cm in thickness.

Its top is rounded abd adorned with a winged sun disk, accompanied by two cobras that are depicted wearing Egypt’s White and Red Crowns.

Between these symbols is the inscription “Di-Ankh,” which translates to “given life.” The central panel of the stela contains 30 lines of hieroglyphic text that are intricately carved in sunk relief, offering valuable insights into its historical context.

The text highlights the religious and political accomplishments of King Ptolemy III.

These achievements include making donations to temples, ensuring domestic stability, lowering taxes during years when the Nile experienced poor floods, establishing a new priestly rank in honor of himself and Berenice, and initiating a festival to commemorate the heliacal rising of the star Sirius. Furthermore, the discovery highlights the significance of Tell El-Pharaeen—ancient Imet—as a pivotal urban center in the Nile Delta, especially, during the Middle Kingdom and later in the Ptolemaic period.

Previous excavations at the site have revealed monumental temples and luxurious residential buildings, including one dedicated to the cobra goddess Wadjet, protector of Lower Egypt.

Previous excavations at this site have uncovered temples, elite residences, and a sanctuary devoted to the goddess Wadjet, underscoring its historical and cultural importance.

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Written by Conny Waters – AncientPages.com Staff Writer





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Illinois’s Mazon Creek: Recreating 300-Million Year-Old Ecosystem – Fossil Preservation And Diversity Of Life


Eddie Gonzales Jr. – AncientPages.com – Over 300 million years ago, during the Carboniferous Period, the region now known as northern Illinois, excluding Chicago, was characterized by vibrant ecosystems.

Illinois's Mazon Creek: Recreating 300-Million Year-Old Ecosystem - Fossil Preservation And Diversity Of Life

A Tully Monster (Tullimonstrum gregarium). Image credit: University of Missouri

This area, which includes the Mazon Creek fossil site (pronounced “muh-ZAHN”), was home to a diverse array of ancient creatures. These organisms thrived in environments such as lush tropical swamps, river deltas, and shallow seas.

Researchers at the University of Missouri’s College of Arts and Science are working with geologist Gordon Baird to reexamine his extensive fossil collection from Mazon Creek, currently stored at the Field Museum in Chicago.

This collection comprises 300,000 siderite concretions sourced from approximately 350 different sites. The Mazon Creek fossil beds are famous for their remarkable preservation of both plant and animal life, a result of their distinct geological conditions.

The fossils are encased in siderite, an iron carbonate mineral, forming numerous concretions that have become invaluable to scientists and amateur fossil enthusiasts alike.

Decades of research at Mazon Creek, including pivotal fieldwork by Baird and his team in the late 1970s, have provided us with an exceptional understanding of ancient coastal life.

A snapshot of ancient life

Baird’s pioneering research at the Mazon Creek fossil site was instrumental in identifying two significant faunal assemblages, or groups of animal remains.

These assemblages have been crucial for scientists in reconstructing the ancient environments from which these fossils emerged.

The first is a marine assemblage, consisting of organisms that lived in offshore coastal waters. The second is a mixed assemblage found in a river delta along the shoreline, where both freshwater organisms and terrestrial plants and animals transported by water were preserved together.

Illinois's Mazon Creek: Recreating 300-Million Year-Old Ecosystem - Fossil Preservation And Diversity Of Life

Concretions. Image credit: Gordon Baird

Mizzou’s team has recently validated a more detailed interpretation of Baird’s initial findings. They achieved this by employing contemporary data analysis methods alongside advanced imaging technologies available at Mizzou’s X-ray Microanalysis Core.

“We found three readily identifiable paleoenvironments, including the unique characteristics of a benthic marine assemblage representing a transitional habitat between the nearshore and offshore zones,” said Jim Schiffbauer, Marie M. and Harry L. Smith Endowed Professor of Geological Sciences. “These ancient environments were each dominated by specific groups of animals, for example freshwater animals nearest to shore, jellyfish and sea anemones further offshore, and marine clams and worms in the transitional zone.”

The fossils formed during a phase of sea-level rise and flooding of what used to be large coal swamps.

“The different environments affected how quickly and deeply organisms were buried, and in what specific geochemical conditions fossilization may have started,” Schiffbauer said. “That, in turn, shaped where certain microbes lived and helped form the minerals that make up the concretions surrounding these fossils today.”

Next steps

In current and future research, Schiffbauer and Baird are using this information to create a sedimentological model to show how the Mazon Creek ecosystem connects to the Colchester coal layers below — where coal mining led to the fossil site’s original discovery.

Illinois's Mazon Creek: Recreating 300-Million Year-Old Ecosystem - Fossil Preservation And Diversity Of Life

Field collection of concretions. Credit: Gordon Baird

“Given that multiple episodes of rapid coastal drowning events occurred in the U.S. midcontinent during the Carboniferous Period, refinement of information from the Mazon Creek locality will lead to a deeper understanding of similar deposits in other coal basins,” said Baird, who is now an emeritus professor at State University of New York at Fredonia.

The recent collaborative analysis conducted by Mizzou, in partnership with Baird, private sector colleagues, and the University of Toronto, offers the most comprehensive and data-driven depiction of Mazon Creek’s ancient ecosystem.

This research significantly enhances our understanding of biodiversity and paleoecology during the Carboniferous Period.

“It offers a real snapshot of the incredible diversity present in the late Carboniferous Period and allows for inferences about the complexity of food chains and how this ecosystem functioned,” Schiffbauer said.

“Now, we have an unparalleled and statistically supported look at the interconnected terrestrial, estuarine and marine life of the Carboniferous Period.”

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Written by Eddie Gonzales Jr. – AncientPages.com – MessageToEagle.com Staff Writer





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