Benjamin O. Davis Sr. became the first African American US Army brigadier general.
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The US Navy commissioned USS Nautilus, which became the world’s first nuclear submarine.
US Air Force Captain Chuck Yeager became the first-ever person to break the speed of sound, flying the Bell X-1 at 662 miles per hour.
The USS Indianapolis vessel was torpedoed and sunk.
The Soviets shot down the plane of an American CIA agent, and the pilot was sentenced to 10 years in prison.
Wikileaks published classified information about the war in Afghanistan.
