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.

We have 49 holidays listed for March 21. March 21st is the 80th day in the Gregorian calendar; it also marks the anniversary of third—and finally successful—civil rights march led by Dr. Martin Luther King, Jr. and the founding of Twitter.

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

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

Mar 21, 2025 · 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.

Did you know that March 21 is known as Memory Day? Here you'll find interesting facts about Mar 21 as well as historical events that happened on this day.

On March 21, 1965, civil rights demonstrators led by the Rev. Martin Luther King Jr. began their third, successful march from Selma to Montgomery, Alabama. On this date: In 1685, composer Johann Sebastian Bach was born in Eisenach, Germany.

Today in history – which major historical events happened on March 21? Who was born on this date, who died? In which year did the birth or death occur?

The Vietnam War draft lottery ran from 1969 to 1972. If you were born on March 21, would your number have been called?