1214
Science
Second marriage to Geoffrey de Mandeville, 2nd Earl of Essex
Isabella married Geoffrey FitzGeoffrey de Mandeville, 2nd Earl of Essex, on 20 January 1214, a union arranged by King John.
View detailsThis Day
20January
37 indexed achievements across recorded history.
1479
Politics
Start of joint rule over Castile and Aragon
Began joint rule over Castile and Aragon with Ferdinand after John II’s death, creating the personal union foundational to Spain.
View details1756
Science
Collinson’s 1756 letter recognizing Jane Colden’s botanical work
Peter Collinson’s Jan 20, 1756 letter to John Bartram praised Colden’s botanical work, calling her “the first lady who has attempted anything of this nature.”
View details1758
1820
Activism
Birth of Anne Jemima Clough
Anne Jemima Clough was born in Liverpool, England, on 20 January 1820, later becoming a pioneering advocate for women's higher education.
View details1863
Activism
First woman to secure a homestead claim in her own name
On January 20, 1863, Mary Meyer filed a homestead claim at Brownville, Nebraska, likely becoming the first woman to secure a homestead in her own name under the Homestead Act.
View details1872
Arts
Birth of Julia Morgan
Julia Morgan was born in San Francisco, California, the eldest daughter of Charles Bill Morgan and Eliza Woodland Parmelee Morgan.
View details1880
Science
Patent granted for sewing and trimming seam machine
U.S. Patent No. 223,515 was granted to Helen Blanchard for a machine that sewed and trimmed seams simultaneously on knitted fabrics.
View details1885
Science
Publication of "A Popular History of Astronomy During the Nineteenth Century"
Clerke published her landmark work synthesizing 19th-century astronomical discoveries, establishing her as the leading astronomical historian of her era.
View details1899
1907
Science
Death of Agnes Mary Clerke in London
Agnes Mary Clerke died on 20 January 1907 in London at age 64, leaving behind a body of work that shaped public understanding of astronomy for generations.
View details1908
Literature
Birth of Fleur Cowles
Fleur Cowles was born on January 20, 1908, in New York City.
View details1910
Science
Birth of Joy Adamson in Troppau, Austria-Hungary
Friederike Victoria "Joy" Gessner was born in Troppau, Silesia, Austria-Hungary (now Opava, Czech Republic).
View details1929
Arts
Release of The Kiss
The Kiss was Garbo's final silent film, released on January 20, 1929.
View details1941
Arts
Broadway premiere of 'The Skin of Our Teeth'
Premiered in 'The Skin of Our Teeth' on Broadway.
View details1953
Science
Concludes tenure as Treasurer of the United States
Georgia Neese Clark Gray's term as the first woman U.S. Treasurer ended with the conclusion of the Truman administration.
View details1961
Politics
National anthem at JFK’s inauguration
Jackson sang the national anthem at President John F. Kennedy’s inauguration in Washington, D.C.
View details1965
Politics
First First Lady to hold the Bible at a presidential inauguration
At LBJ's 1965 inauguration, Lady Bird Johnson held the Bible for the oath of office—the first time a First Lady performed this role.
View details1969
Politics
Departs White House having formalized the modern East Wing office
Lady Bird Johnson left the White House having expanded the First Lady's office with a staff director, press secretary, and policy role unprecedented for the position.
View details1975
Science
First Australian to win American Music Award for Favorite Pop/Rock Female Artist
Reddy won the American Music Award for Favorite Pop/Rock Female Artist, becoming the first Australian to win the category.
View details1976
Literature
First Black woman inducted into the American Academy of Arts and Letters
First Black woman in American Academy of Arts and Letters.
View details1977
Arts
Performs at President Carter’s inauguration
Franklin performs 'God Bless America' at the inauguration of U.S. President Jimmy Carter.
View details1982
Science
Birth in Pune, India
Born in Pune, India, Indian-American engineer at Facebook and Dropbox.
View details1983
Science
First detection of retroviral activity indicating a new virus (later HIV)
On or around 20 January 1983, Barré-Sinoussi detects reverse transcriptase activity in cultured cells — the first sign of the virus later identified as HIV.
View details1987
Medicine
Death and burial of Annie G. Fox
Death of Major Annie G. Fox in San Francisco, California; she is buried in San Francisco National Cemetery.
View details1993
Politics
Becomes First Lady of the United States
Hillary Rodham Clinton became First Lady of the United States upon Bill Clinton’s inauguration.
View details1993
1993
Politics
First Lady of the United States
Became First Lady with a law degree, increasing the role's visibility and policy influence.
View details1997
Politics
Concluded tenure as U.S. Secretary of Energy
O'Leary's tenure as U.S. Secretary of Energy ended, coinciding with the close of the first Clinton administration.
View details2004
Law
Start of federal criminal trial
Martha Stewart's federal trial begins on January 20, 2004.
View details2009
Arts
Performs at President Obama’s inauguration
Franklin performs at the inauguration of Barack Obama, the first African American U.S. President.
View details2009
Politics
First woman to preside over a U.S. presidential inauguration
Feinstein presided over President Barack Obama’s first inauguration.
View details2013
2021
Politics
Introduced Kamala Harris at inaugural programming
Fuller introduced Vice President Kamala Harris during a televised presidential inauguration celebration.
View details2021
Politics
Inaugurated as 49th Vice President of the United States
First Female, Black, and South Asian Vice President in U.S. history.
View details2021
Politics
End of tenure as CIA Director
Gina Haspel's tenure as CIA Director concluded with presidential transition.
View details2021
Politics
Guinness World Records Acknowledges Harris’s Vice-Presidential Firsts
Guinness recognizes Harris as the first female, Black, and South Asian VP.
View details