Mysterious demise of AI

[alexti2]

I've just won rather strange victory: conquest in 3520 BC. It was archipelago map on Deity, "play now" settings. On the replay it shows that AI has never founded a city. In fact, I can't determine if any AI was in game. But if the map generator "forgot" to place AI, why didn't I get victory right away? It took quite a few turns to reach victory. The only valid (other than software bug) explanation is that barbarians have killed AI players before they could found a city. But on deity AI starts with 2 settlers and bunch of other units. I find it hard to believe that barbarians were so successful.