Just finished playing a FFA game that had some highly weird things happen.
At 2400 it resynched and it wasn't 2300 as expected. Instead it was now 1600 and my cap now had 5 new archers in it. Weird. So since I am at 69g i form one up into an army and sell it and have my whale on gold instead of science.
Next turn instead of 1500 it is now 1100. Have produced my own settler and it says I have 117g but not the milestone yet. Resynchs yet again it is now 800 bc.
So in the span of 3 turns it goes from 2400 BC to 800bc.