March 21 is the 80th day of the year (81st in leap years) in the Gregorian calendar; 285 days remain until the end of the year. 537 – Siege of Rome: King Vitiges attempts to assault the northern and eastern city walls, but is repulsed at the Praenestine Gate, known as the Vivarium, by the defenders under the Byzantine generals Bessas and Peranius.

On March 21, 1778, just three days after British Loyalists and Hessian mercenary forces assault the local New Jersey militia at Quinton’s Bridge, three miles from Salem, New Jersey, the same ...

Historical events for the 21st of March. See what famous, interesting and notable events happened throughout history on March 21.

16 小时之前 · What happened on this day in history, March 21. See what historical events occurred, which famous people were born and who died on March 21.

American civil rights activists led by Martin Luther King, Jr., began a protest march from Selma to Montgomery, Alabama. Learn about 10 milestones in civil rights history

March 21 History : 1980 - US boycott of Moscow Olympics announced by President Jimmy Carter. 1965 - Martin Luther King begins march from Selma to Montgomery, Alabama. 1963 - The last prisoners relocated from Alcatraz. 1859 - 1st Zoological Society incorporated in PA. 1804 - Code Napoleon - the warlord's own civil code - goes into effect over France

Discover what happened on March 21 with HISTORY’s summaries of major events, anniversaries, famous births and notable deaths.