The Apollo 11 mission, a landmark event in space exploration, involved several key events:

1. **Launch**: On July 16, 1969, Apollo 11 launched from Kennedy Space Center in Florida atop the Saturn V rocket. The crew consisted of Neil Armstrong, Buzz Aldrin, and Michael Collins.

2. **Journey to the Moon**: Over the next few days, Apollo 11 traveled through space, conducting several maneuvers to enter a lunar orbit.

3. **Moon Landing**: On July 20, 1969, the lunar module, Eagle, piloted by Neil Armstrong and Buzz Aldrin, separated from the command module, Columbia, which was being piloted by Michael Collins in lunar orbit. The Eagle successfully landed on the Moon's surface in the Sea of Tranquility.

4. **First Moonwalk**: Neil Armstrong became the first human to set foot on the Moon, famously declaring, "That's one small step for [a] man, one giant leap for mankind." Buzz Aldrin joined him shortly after, and together they conducted experiments, collected samples, and took photographs.

5. **Return to Earth**: After spending approximately 21.5 hours on the lunar surface, Armstrong and Aldrin returned to the command module. Apollo 11 then departed lunar orbit and began its journey back to Earth.

6. **Splashdown**: On July 24, 1969, the command module safely splashed down in the Pacific Ocean, and the crew was retrieved by the USS Hornet.

These events marked the successful completion of the mission, achieving President Kennedy's goal of landing a man on the Moon and returning safely to Earth before the end of the 1960s.