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There are 46 presidents. I don't know there are total 46 presidencies
They found fertile soil, which they used to grow a variety of crops.
They found the soil unusable, and they had to rely on fishing and hunting for food.
They discovered sandy soil, which they had to convert to grassland in order to grow crops.
They shared their knowledge of crop rotation with Native Americans in order to establish trade.
The stock market crash and lost resources due to the war
