National days, ongoing national weeks and months, and global observances for March 20, 2026. Plus historical events and birthdays.
No celebrations found.
These observances run for a full week; this calendar day falls inside the week.
These observances last the full month; this date is part of that month-long celebration.
Showing the first 12 on this date; there are more month-long observances. See the full months list for March.
International and other global observances on this date (may include days, weeks, or months).
Events that occurred on March 20 throughout history
John P. Jewett and Company publishes Uncle Tom's Cabin; or, Life Among the Lowly by Harriet Beecher Stowe.
Former Whigs and Free-Soilers meet in Ripon, Wisconsin, and form the Republican Party with the primary goal to prevent slavery from extending into western territories.
Albert Einstein publishes his Theory of General Relativity in the scientific journal Annalen der Physik.
The United States Navy commissions its first aircraft carrier, the USS Langley.
In a race riddled with storms, Libby Riddles claimed victory in the Iditarod Trail Sled Dog Race, becoming the first woman to win the famed endurance race.
The Food and Drug Administration (FDA) approved the antiviral drug azidothymidine (AZT) for the treatment of AIDS patients.
Bertrand Piccard and Brian Jones completed the first non-stop circumnavigation of the Earth by balloon.