Neil Armstrong

Astronaut, Commander Apollo 11

American astronaut and first human to walk on the Moon (July 20, 1969) as commander of Apollo 11 mission. Aeronautical engineer who stepped onto lunar surface at 02:56 UTC July 21, declaring 'one small step for [a] man, one giant leap for mankind' to estimated 650 million viewers. Apollo 11 (July 16-24, 1969) fulfilled Kennedy's 1961 goal to land Americans on Moon before decade's end. Achievement provided decisive US victory in Space Race against Soviet Union. Preceded by distinguished test pilot career. Died 2012, posthumously revered as embodiment of American technological triumph and Cold War-era exploration.

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