I'm studying Native Americans. This is my latest discovery.

Teepees were designed in the shape of a triangle. They were always in different sizes. Why? I think it's because they didn't have anything to measure with. They could have had something to measure with and just had different size Indians.

Before they had fences, they would dig holes around their land. If an animal fell in, the Indians could eat it. They got it out by using poles with string down the middle, in the shape of a 'U'. They would pull the string and the animal would pop out of the hole. The holes were also used to protect themselves from enemies.