The third Time Period's card didn't show, and when I bought my first upgrade (Archeologist) the game unlocked all of the Time Periods to the caveman era (without unlocking any of the cards) and told me I had won.
I reset using the in-game option : The first tier upgrade (Historian if I remember?) can't be bought even with sufficient years. Buying the Archeologist again gave me a "You Win!" message without showing any of the time period pop-ups like the first time around.
You've got at least two pretty serious issues in the code - the first upgrade doesn't work, and the second (and last?) upgrade ends the game early.