They played the British empire and the French empire again st each other by sighing each others treaties both. This counterbalance both of the powers that if one tries conquer Thailand, the other will try to stop it.
The answer to your question is the Missouri Compromise.
Just took a test on this. Bacons rebellion upset the rich, but he was seen a hero to the poor. Bacon rebelled against the governor of Virginia at the time, William Berkly. He rebelled against William because he would only look after the rich and himself. He taxed the poor, but not the rich. He was unfair to the poor. Bacon was rich himself, but he still helped the poor by leading the rebellion. I hope this helps:)