1762
Science
Accession as Empress of All Russia
After deposing her husband Peter III in a coup, Catherine is proclaimed Empress of Russia on 9 July 1762.
View detailsThis Day
09July
19 indexed achievements across recorded history.
1762
Politics
Catherine seizes power in a coup, becomes Empress of Russia
Catherine leads a successful coup against her husband Peter III and is proclaimed sole Empress of Russia on 9 July 1762.
View details1764
1785
Politics
Birth of Sophie Hélène Béatrice
Gave birth to Sophie Hélène Béatrice, her youngest child, at Versailles.
View details1884
Science
Asteroid 238 Hypatia Discovered and Named in Her Honor
Astronomer Victor Knorre discovered main-belt asteroid 238 Hypatia on July 9, 1884, later named to honor the ancient philosopher and astronomer.
View details1900
Sports
First American woman Olympic medalist
At the 1900 Paris Olympics, she won Bronze in singles and mixed doubles.
View details1904
Science
Death of Martha Jane Coston
Death of Martha Jane Coston, inventor of the Coston flare, in Pennsylvania after a career transforming maritime night signaling.
View details1917
Law
Regains U.S. citizenship
Elliott regained U.S. citizenship after legal changes in 1917.
View details1917
Activism
Conviction and sentencing for draft obstruction
Goldman is convicted of obstructing the draft and sentenced to two years in prison.
View details1922
Science
Birth of Kathleen Hylda Valerie Britten (Booth)
Kathleen Hylda Valerie Britten was born in Stourbridge, England, later becoming a pioneering computer scientist.
View details1932
Arts
Born in Denver, Colorado
Paula Kent Meehan, future co-founder of Redken Laboratories, was born on July 9, 1932, in Denver, Colorado.
View details1935
Science
Birth of Mercedes Sosa in Tucumán, Argentina
Haydée Mercedes Sosa was born in San Miguel de Tucumán, Argentina, into a working-class family of mixed Indigenous and Spanish descent.
View details1942
Activism
Frank family officially moves to annex
The Frank family’s official move into hiding was completed by leaving their home.
View details1967
1982
Arts
US release of Tron featuring Wendy Carlos score
"Tron" is released, showcasing Carlos’s hybrid score blending synth and orchestral elements.
View details1987
Sports
Debut for U.S. Women's National Team as youngest-ever player
At 15, Mia Hamm debuted for the U.S. women's team as its youngest player then.
View details1989
Science
Birth of Katherine Louise Bouman
Katherine Louise Bouman was born in West Lafayette, Indiana. She is best known as Katie Bouman, a key contributor to the black hole imaging project.
View details1998
Sports
Professional start in men's baseball recorded in later profile
A later profile identifies July 9, 1998, as the game in which Borders started, pitching five innings and allowing three earned runs.
View details2006
Sports
Third U.S. Women’s Open championship
Secures her third U.S. Women’s Open title on 9 July 2006 with an 18‑hole playoff win at Newport Country Club.
View details