Just a little confused about the past events space - my guess is that it is essentially the discard pile for events that have been turned over and resolved? And do Age A events just sit on the current events pile in the advanced and full games, even when Age A is over? Also, after playing a round or two of the Simple Game, we were confused about when Age A actually ends - so when are you able to take age 1 leaders for example?
Any Age ends the moment some Civil deck is gone. Age A ends at the beginning of 2nd player's 2nd turn (when Age I cards enters the Card row). You could even take some Age I leader, put it in play and than replace with Age A leader (it's great tactics when Columbus comes to the game early).