George Washington was a leader of the Continental Army in the American Revolution, and was the first to become U.S. president.
The Himalayas and the Tibetan Plateau to the north have risen very rapidly. In just 50 million years, peaks such as Mt. Everest have risen to heights of more than 9 km. The impinging of the two landmasses has yet to end. The Himalayas continue to rise more than 1 cm a year -- a growth rate of 10 km in a million years!
One well-known mountain range is the Himalayas range in Asia. It was created when pieces of the Earth's crust, called tectonic plates, crashed into each other several million years ago. Many of the tallest mountains in the world (including the world's tallest, Mt. Everest) are part of the Himalayas.