The USS Enterprise was launched in 2245, under Captain Robert April, before Pike took command somewhere around 2254, which is the year of the show's initial, rejected pilot episode "The Cage." A new pilot - now featuring William Shatner's iconic Captain Kirk and a little more action - was set in 2265, while the first season of Star Trek: The Original Series was largely set in 2266. The show would take some time travel detours - including the stone cold classic "City On The Edge Of Forever," which saw Kirk and Spock faced with an impossible choice when they find themselves thrown back to the 1930s. But this is the show whose era would define Star Trek for decades - bright colors, multicultural Starfleet crews, and more than a little silliness. TOS Season 1-3