Neil Armstrong was an American astronaut and aeronautical engineer who became the first person to walk on the moon. On July 20, 1969, Armstrong, along with fellow astronaut Edwin "Buzz" Aldrin, landed the Apollo Lunar Module Eagle on the surface of the moon as part of the Apollo 11 mission.
After the landing, Armstrong famously declared, "That's one small step for man, one giant leap for mankind," as he became the first human to set foot on the moon's surface. The event was watched by millions of people around the world and is considered one of the greatest achievements in human history.
Before his historic mission, Armstrong served as a U.S. Navy fighter pilot during the Korean War and later worked as a test pilot for NASA. He was selected as an astronaut in 1962 and went on to fly several missions in space, including the Gemini 8 mission in 1966, which was the first docking of two spacecraft in orbit.
After his retirement from NASA, Armstrong taught aerospace engineering at the University of Cincinnati and remained active in the field of aviation. He passed away on August 25, 2012, at the age of 82.