Which significant aviation event occurred on July 20, 1969?

The event that took place on July 20, 1969, is widely recognized as the Apollo 11 Moon landing. This historic achievement marked the first time humans set foot on the lunar surface, with astronauts Neil Armstrong and Edwin "Buzz" Aldrin descending from the lunar module, Eagle, to explore the Moon while Michael Collins remained in orbit aboard the command module, Columbia. Armstrong’s famous words, "That's one small step for [a] man, one giant leap for mankind," resonated around the globe, symbolizing a monumental achievement in space exploration and human ingenuity.

The other options refer to notable aviation and space events but do not correspond to July 20, 1969. The Space Shuttle was not launched until 1981, the first orbital flight of Mercury 7 occurred in May 1962, and the Concorde's first flight took place in March 1969, earlier that same year. Only the Apollo 11 Moon landing represents an event with immense significance in aviation history that aligns with the given date.