24 significant historical events occurred on April 20. April 20 has seen many historical events. Notably, the 1914 Ludlow Massacre involved striking Colorado coal miners. The 1992 Freddie Mercury Tribute Concert for AIDS Awareness also took place on this date. Significant events include the failed 1961 Bay of Pigs invasion of Cuba and the tragic 1999 Columbine High School massacre in Colorado.
Total Events
24
Time Span
1052–2015
Categories
4
Top Category
war
13 events
26 famous birthdays on April 20
Including K. Alex Müller, Paul R. Milgrom, Napoleon III
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Event Distribution by Century
Darker = Higher Density11th C.21st C.
11th Century
1 event12th Century
1 event15th Century
1 event17th Century
1 event18th Century
1 event19th Century
4 events20th Century
9 events21st Century
6 eventsExplore More for April 20
Discover births, deaths, and deeper historical trends for this date.