2021-04-13

War in Afghanistan: In an airstrike in Nangarhar Province, the U.S. military dropped the most powerful conventional bomb used in combat.

The board of Rosendale, New York, voted 3–2 to approve the purchase of Joppenbergh Mountain.

Twenty-three people died in a fire at a homeless hostel in Kamień Pomorski; it was Poland's deadliest fire since 1980.

Andrew Hussie's webcomic Homestuck debuted, and later concluded on the same day in 2016.

In golf, 21-year-old Tiger Woods became the youngest player to win the Masters Tournament, breaking the record for the lowest four-round score.

An Israel Defense Forces helicopter fired rockets at an ambulance, killing two women and four children in Mansouri, Lebanon.

Forty people died in an explosion at an ammunition factory in Lapua, Finland.

Catch a Fire, the landmark reggae album by Bob Marley and the Wailers, was released.

In the midst of the Cold War, American pianist Van Cliburn won the inaugural International Tchaikovsky Competition in Moscow.

The Vietnamese National Army captured Ba Cụt, a military commander of the religious sect Hòa Hảo, which ran a de facto state in South Vietnam in opposition to Prime Minister Ngô Đình Diệm.