44 B.C.

On the “ides of March,” Roman dictator Julius Caesar was assassinated by Roman senators, including Brutus and Cassius, who feared Caesar was working to establish a monarchy.

1965

President Lyndon B. Johnson, addressing a joint session of Congress, called to guarantee every American’s right to vote. It led to the Voting Rights Act of 1965.

2019

A gunman killed 51people at two mosques in Christchurch, New Zealand, streaming the massacre live on Facebook.