- 1755 Samuel Johnson's "A Dictionary of the English Language" published in London.
- 1877 1st telephone installed: Boston-Somerville in Massachusetts
- 1896 First modern Olympic games close in Athens, Greece
- 1912 RMS Titanic sinks at 2:27 AM off Newfoundland as the band plays on
- 1947 Jackie Robinson becomes 1st African-American to play in US major league baseball (Dodgers)
- 2013 Boston Marathon bombings: 3 people are killed and 183 injured after two explosions near the finish line
Guy Carawan sings "We Shall Overcome" to a Student Nonviolent Coordinating Committee in Raleigh - popularising the song as a protest anthem
On April 15, 1960