The United States sent 9 manned missions to the Moon between Dec. 1968 and Dec. 1972.
The first manned orbiter was Apollo 8.
The first manned lander was Apollo 11, on July 20, 1969.
The “space race” between the United States and the Soviet Union had many international, political implications, but the Apollo missions did gain scientific information in 3 ways:
Collected samples of lunar rock and soil: about 400 kg.
Left equipment on the lunar surface to carry out observation and experimentation: ALSEP, Apollo Lunar Surface Experiment Package.
Apollo Command Module photographed the lunar surface from orbit.