1752
Science
Notice on bleaching cotton yarn recorded
Notice dated 4 April 1752 records Ekeblad’s findings on bleaching cotton yarn, documenting her applied chemical work.
View detailsThis Day
04April
15 indexed achievements across recorded history.
1802
Science
Birth of Dorothea Dix
Dorothea Lynde Dix was born in Hampden, in the District of Maine, Massachusetts, later becoming a leading American social reformer.
View details1828
Science
Born in Wallyford, Scotland
Margaret Oliphant born near Musselburgh, Scotland, on 4 April 1828.
View details1887
Politics
Elected first woman mayor in the United States, Argonia, Kansas
On April 4, 1887, Susanna M. Salter was elected mayor of Argonia, Kansas, becoming the first woman elected mayor of any city in the United States.
View details1887
Politics
Begins one-year term as first woman mayor in the United States
Susanna M. Salter’s one-year term as mayor of Argonia, Kansas, effectively began with her April 4, 1887 election, making her the first woman mayor in U.S. history.
View details1898
Science
First woman elected to the Warren, Ohio Board of Education
Upton became the first woman elected to the Warren Board of Education after Ohio women won school-vote rights in 1894.
View details1914
Literature
Birth of Marguerite Duras
Marguerite Duras was born on April 4, 1914, in Gia Định, French Indochina.
View details1928
Literature
Maya Angelou born in St. Louis
Future poet laureate and civil rights activist is born Marguerite Annie Johnson.
View details1979
1985
1994
Politics
National profile as first female and African American energy chief
O'Leary was widely profiled nationally as the nation's first female and African American Secretary of Energy, noted for opening up a historically secretive agency.
View details2006
Medicine
First woman to win the Wiley Prize in Biomedical Sciences
Rockefeller University announces Carol W. Greider as co-recipient—and first woman winner—of the 2006 Wiley Prize in Biomedical Sciences.
View details2008
Science
Elected to the National Academy of Sciences
Bertozzi was elected to the U.S. National Academy of Sciences, one of the highest honors available to American scientists.
View details2014
Science
Death of Margo MacDonald
Margo MacDonald died on 4 April 2014 after a long battle with Parkinson's disease, prompting tributes across Scottish politics.
View details2019
Politics
Acknowledged as first woman from CIA ranks to become Deputy Director
First woman from CIA ranks to Deputy Director, acknowledged by CIA.
View details