Ok, now I know the trigger is suposed to be an imperial palace in Italy (I've also heard any time after 220BC in 1.5), but I was playing last night and they happened really early, in 227BC.
I'm playing as Julii, and have spies in Rome, Capua, Tarentum and Croton and there is NO IMPERIAL PALACES anywhere in Italy. Rome has 26k people, but still a Pro-Consul place, the only thing I can think is maybe Sicily counts too? I have a screenshot, but am at work, I'll try to post it tonight. I was just wondering if anyone had an idea.
to be honest I'm a little miffed, I just built a FS army of princepes for the eventual roman social wars (I own 28 provinces, all of Hispania, Gaul, southern Germany, Britania, Palma, Iuvavium and the western dacian province) and now I can't retain them at Alesia (there's a gaulic battleforge temple there).
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