These other dates (beside Warp-Infos and Kirk's-5-year-mission) where given in the first StarTrek-movie:

• 2043-2047: The Mind Control Riots occur on Earth. (p.11)
• In the old times the astronomical knowledge of humans was - or better the so-called Mutant-Farm-Civilizations were, good. But this knowledge rooted in a gift and was not not the result of human work and human growth. (p.90)
• Luna once was the operational base for a spacegoing race of still unknown origin. Millions or more years before the beginning of human history they made genetic experiments with early life-forms on Earth. (p.91)