
By Day: Historical Events on May 21st
Explore key moments from this day in history, organized by year. Dates for earlier events may be approximate.
Note: Sources for the historical content shown, include research and reviews of relevant Online History Resources or printed material. When possible, we show a link to a source which provides additional or unique perspective about the event.
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Pro-slavery forces attacked and burned the free-state town of Lawrence, Kansas, in what became known as the "Sacking of Lawrence."
The American Red Cross is founded in Washington, D.C. by Clara Barton and a circle of her acquaintances. Barton led the Red Cross for 23 years. More
Amelia Earhart became the first woman to fly solo across the Atlantic. (May 20 - May 2021). More