This 4 minute video provides an overview of the key events in the history of the United States space program from 1957 to 1972. It discusses the launch of Sputnik 1 by the Soviet Union in 1957 which kicked off the space race. The video then highlights some of the major milestones and missions achieved by NASA and the US such as Alan Shepard becoming the first American in space in 1961, John Glenn orbiting the Earth in 1962, and Neil Armstrong becoming the first person to walk on the moon in 1969 during the Apollo 11 mission.