"The Yorktown"
In Star Trek the original series it is the Enterprise NCC-1701. In The Next Generation series it is the Enterprise NCC-1701-D.
Leonard Nimoy, who played Spock in the original Enterprise series, appeared as an older Spock in the recent Enterprise movie.
James T. Kirk
NCC 1701
The main starship in the original series was called the Enterprise.
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If you mean "Trek History" (not real life) the "Star Trek Enterprise" series gave its first stardate as 2151 and "Star Trek (The Original Series) gave its stardate as 2265 - so about 100 years. (Timelines from Trek Encyclopedia). In real history, Star Trek (TOS) ran from 1966 - 1969 and Star Trek Enterprise ran from 2001 - 2005.
It depends on which series you're talking about. Original Series: NCC-1701 Next Generation: NCC-1701-D Enterprise: NX-01
Star Trek: The Original Series Star Trek: The Animated Series Star Trek: The Next Generation Star Trek: Deep Space Nine Star Trek: Voyager Star Trek: Enterprise Star Trek: Bridge Commander (TV Series)
Captain James T. Kirk, played by William Shatner
7 Star Trek The Original Series Star Trek The Animated Series Star Trek The Next Generation Star Trek Deep Space Nine Star Trek Voyager Star Trek Enterprise Star Trek Bridge Commander (TV Series)
In 'Star Trek: The Original Series' the USS Enterprise's physician is played by the late DeForest Kelley as 'Leonard H. "Bones" McCoy' .