Gemini 6A (foreground) and Gemini 7 make the first rendezvous in orbit between two crewed spacecraft.
Image: NASA.

In 1965 on this date, Gemini 6A, carrying astronauts Walter “Wally” Schirra and Thomas Stafford, was launched from Cape Canaveral. This flight explored rendezvous capabilities in space by meeting Gemini 7, already in orbit. More information about Gemini 6A can be found at NASA’s Space Science Data Coordinated Archive (NSSDC) page about the mission here.