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.

2025年3月21日 · Historical events for the 21st of March. See what famous, interesting and notable events happened throughout history on 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. Famous March 21st birthdays include Matthew Broderick, Rosie O'Donnell, and Mark Waid.

On March 21, 1980, President Jimmy Carter announces that the U.S. will boycott the Olympic Games scheduled to take place in Moscow that summer.

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

2015年3月11日 · March 21 Holidays and Observances, Birthdays, Deaths, Events, This Day in History, Recipe of the Day, Song of the Day, Quote of the Day, Word of the Day & more!

2025年3月21日 · 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.

2025年3月17日 · Explore fascinating facts about March 21: from the civil rights Selma march to Twitter's launch and global observances that promote equality.

March 21st is also known as Memory Day and Common Courtesy Day. We’re now on the 80 th day of the year, and have 285 days left in 2025. This day in history has a dark side with thousands being executed due to discrimination, but it was also …

2024年4月3日 · The German Spring Offensive, also known as the Ludendorff Offensive, began on March 21, 1918, during World War I. This series of attacks along the Western Front was Germany’s attempt to break the stalemate and secure a decisive victory before the full force of American troops could be deployed.