- On Vulcan the young Spock makes a practical joke. (TAS: "Yesteryear") In another incident, the young Spock comes home anguished, after being told by other Vulcan children that he was not really Vulcan. (TOS: "Journey to Babel")
- In the final revised draft script for "Where No Man Has Gone Before" , Gary Mitchell was about thirty, placing his birth in this year.
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