In my games so far, I've been not shifting governments too much, generally going for the government that will help me most in the long run, and staying with it until I get a government of a higher tier. However, yesterday I took a look at legacy bonuses for the first time, and I realized, these are really powerful, and I should probably pay attention to them as more than just boosts for when you're in the government. Order gives you +20% production, democracy some benefits to great people, merchant republic cost reductions, etc. It also seems like, if I'm reading it correctly, just switching to a government once gives you the legacy bonus for the entire game? So should I be experimenting with every government at least for one civic policy every game, just to get every legacy bonus, or does it only come in to effect if you've stayed with the government for a certain time? The UI is unclear, it seems insane to give you a 15% discount on gold purchases for the rest of the game if you become a merchant republic for one turn before switching to your desired government, but that seems to be how I'm reading it. So, my question is, can anyone explain to me exactly how legacy bonuses work, and whether they're powerful enough you should take every government at some point in every game?