January 17, 1969 –

The Star Trek episode The Mark of Gideon where, Kirk is abducted and held aboard an abandoned duplicated of the Enterprise, first aired on CBS TV on this date.
A strange hole in the plot of this episode: The Gideons were obviously prepared to take drastic action to solve their overpopulation problem. But since their planet was so incredibly crowded that inhabitants were willing to kill for a moment of privacy, where did Hodin and his council find the space to construct a duplicate of such a large vessel as the Enterprise.
