On this day in history - July 20

What Happened On This Day – July 20

• 2012 Aurora shooting

  A gunman, James Holmes, opened fire in a movie theater during the premier of the Dark Night Rises in Aurora, Colorado, killing 12 people and injuring 58 others.

• 1976 Viking I lands on Mars

  Part of the Viking program, Viking I became the first American spacecraft to successfully land on Mars and to complete its mission.

• 1974 Turkish invasion of Cyprus

  Also known as Cyprus Peace Operation or Operation Attila, the invasion was a response to a coup in Cyprus.

• 1969 Football War ends

  A ceasefire came into effect between Honduras and El Salvador after the two countries fought a brief war over immigration El Salvador to Honduras. The hostilities occurred during North American trials of the FIFA World Cup.

• 1969 Apollo 11 lands on the Moon

  Carrying Neil Armstrong and Buzz Aldrin, who would become the first humans to walk on the Moon, the spacecraft safely landed on the Sea of Tranquility on the Moon.