Spherical&Hyperbolic are the 2 most common types of non euclidean geometry
The Treaty of Ghent was signed by British and American representatives at Ghent, Belgium, ending the War of 1812. By terms of the treaty, all conquered territory was to be returned, and commissions were planned to settle the boundary of the United States and Canada.
Herbert Clark Hoover was the 31st president of the United States through the years 1929 - 1933.
