🔍︎
Dark Mode
Celebrations and notable events that occurred on March 21, 2026.
Events that occurred on March 21 throughout history
The first active-duty Navy woman, Loretta Walsh receives the rank of petty officer. She's the first woman enlisted in the United States Armed Forces in a non-nurse capacity.
The Federal Bureau of Prisons closes Alcatraz Federal Penitentiary located on an island off the coast of San Francisco, California. The maximum-security prison is also known as The Rock housed some of the country's most notorious criminals including Al Capone, Robert "Birdman of Alcatraz" Stroud, George "Machine Gun" Kelly, and Alvin Karpis.
The Mayor of San Francisco, Joseph Alioto proclaims the first Earth Day.
Someone shoots J.R. on the popular television series Dallas.
Jack Dorsey, one of Twitter's cofounders, sent the first public tweet. It read, "just setting up my twttr."
