Neil Armstrong was an American astronaut and the first person to walk on the moon. He made history on July 20, 1969, during the Apollo 11 mission, famously declaring, "That's one small step for [a] man, one giant leap for mankind." His journey to the moon was a significant achievement in the Space Race between the United States and the Soviet Union. Born on August 5, 1930, in Wapakoneta, Ohio, Armstrong was not only an astronaut but also a naval aviator and aerospace engineer. After retiring from NASA, he taught aerospace engineering at University of Cincinnati and remained a prominent figure in the field of space exploration.