1st Segment of Time

The reign of Nero, the Trojan War and wars involving the Daleks were said to be part of the 1st Segment of Time. (TV: The Ark) The First Doctor was said in an interview by Crakar Lund to look like an inhabitant of the 1st Segment of Time. (PROSE: Tarnished Image) The Time Lords of the Last Great Time War placed their time scale of Dalek activity, from Davros' childhood in ancient history up to the Battle of the Game Station in the year 200,100, as falling within the 1st Segment of Time. (PROSE: Dalek Combat Training Manual)
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