They made teepees because they were nomads. (a nomad is a member of a people having no permanent abode, and who travel from place to place to find fresh pasture for their livestock.) Teepees were easy to set up and put away for traveling purposes. Teepees were made out of stretching buffalo skin over a skeleton of 20-30 wooden poles, all slanted towards a central point and tied together near the top. A flap at the top allowed smoke to escape, and a flap at the bottom served as a doorway.
The Mongol Empire lasted only 100 years.
The Mali Empire lasted a little more than 300 years.
By 1688, England had arrived at a kind of constitutional settlement but it was still grappling with two key questions, one of which was <span>b. whether a monarchy should be permanently institutionalized. And in 1701, the Act of Settlement was passed which settled the succession of the Irish and English Crowns on Protestants only. </span>