On what date did the astronaut who influenced the Apogee imprint set foot on the moon?
Apogee Books:  The Apogee imprint began with "Apollo 8 The NASA Mission Reports" in November 1998 at the request of astronaut Buzz Aldrin, second man on the moon. Buzz Aldrin:  He set foot on the Moon at 03:15:16 on July 21, 1969 (UTC), following mission commander Neil Armstrong.
July 21, 1969