Įarlier in the game I eliminated 2 City states and got the warning that the others were forming an alliance against me. Clearly my diplomacy sucks but I don't know why.
My problem is that in my current game (v 1.0.0.621 Gandhi Prince Oval map Standard size) within a few turns all 7 AI declare war on me. This is my first post though I played CIV3 and CIV4 avidly and now have 800 hours on CIV5.