Name: Neil Armstrong takes the first lunar step
Start: 1969-07-21

July 20 in US time zones.

NASA — mission history (opens in a new tab) — Factual summary; source attribution retained.

1966-03-16 Gemini VIII completes the first orbital docking Shares a spacecraft, person or other linked entity
1968-12-24 Apollo 8 photographs Earthrise Same organization: National Aeronautics and Space Administration
1972-12-07 Apollo 17 takes the Blue Marble photograph Same organization: National Aeronautics and Space Administration
1971-11-13 Mariner 9 enters Mars orbit Same organization: National Aeronautics and Space Administration
1969-07-20 Apollo 11: lunar landing Same destination: Moon
1969-11-19 Apollo 12: lunar landing Same destination: Moon