My first game is as Brazil and... The only Golden Ages I seem to get are from Wonders and Social Policies and spending great artists out of despair. I had the same problem with Persia; it seems I have no idea how to use Golden Age strategies. For most of the game my Happiness is close to zero. Is it really worth stunting growth of cities in the hope of spawning a golden age? It requires way too much happiness it seems. Like, right now I need something like 1500 extra happiness to accumulate... Even at 15 extra happiness (basically wasted growth!) that is going to take 100 turns.