Portal:United States/Anniversaries/April/April 16
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- 1862 – A bill ending slavery in the District of Columbia becomes law.
- 1947 – Bernard Baruch coins the term "Cold War" to describe the relationship between the United States and the Soviet Union.
- 1963 – Martin Luther King Jr. pens his famous Letter from Birmingham Jail while incarcerated in Birmingham, Alabama for protesting against segregation.
- 1972 – Apollo 16 launches towards the Moon from Cape Canaveral, Florida.
- 2007 – The deadliest mass shooting in modern American history, the Virginia Tech massacre (memorial ceremony pictured), occurs. A gunman shoots 32 people to death and injures 23 others before committing suicide.
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