You can't really judge things by the in-game calendar... otherwise it takes a good 300 years to build units early in the game.
300 years to build units? That seems rather impossinle, even on Marathon speed... Anyway, I play on Normal speed, 1066 AD for Thomas' War.
BTW, I'm experiencing some late game CTDs, with the message "try to reduce Graphics settings" (so I switched to single unit graphics). Sorry, no savgames...