Wikipedia:WikiProject Space 2019/OTD/July 21

July 21:

Jean Picard (b. 1620)· Lettice Curtis (d. 2014)· Alene Duerk (d. 2018)
 * 200 – ...
 * 800 – ...
 * 1200 – ...
 * 1600 – ...
 * 1969 – During the Apollo 11 mission, Buzz Aldrin (pictured) became the second human to walk on the Moon after Neil Armstrong.