And don't forget Gemini 6 and 7
The first true rendezvous between two manned space vehicles - and it wasn't even the original plan for them!
Almost every image you ever see of real Geminis in Earth orbit came from that event in Decemver of 1965.
Gemini 7 also had the world record for manned space endurance (14 days) until Soyuz 9.
http://en.wikipedia.org/wiki/Gemini_6
http://en.wikipedia.org/wiki/Gemini_7
And maybe we should also remember that though they failed, the Soviets were trying to land the first probes on the Moon and Venus in 1965. Heady times indeed!