Sales tax is what you're charged for. Businesses have to pay taxes annually, so they tax every sale.
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The civil war was between same nations and north vs south. During the civil war both sides both killed multiple people causing there to be less men for money causing dept and many monuments to be destroyed destroying the land
Farming changed society because people were able to settle in one place. People did not have to hunt for animals far away because they would have food already growing. It also help to form an economy and government.