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It was the known as the first national park in the world. It was created on March 1, 1872 when United States President Ulysses S. Grant signed a law to create it. The name was taken from the Yellowstone River, which flows through the park. Yellowstone was made a UNESCO World Heritage Site in 1978.Yellowstone National Park is famous for its geysers and hot springs. The park contains about half the world's geysers.eople have lived in the Yellowstone area for about 11,000 years. Some native Americans still lived there when the first people came from Europe came through in 1807/1808. John Colter, a trapper, came within the Lewis and Clark Expedition and visited a large area which was unknown to the western world at that time.
Yellowstone, the world's first national park, was so named, because it was by traveling up the river of the same name into the mountains that the first explorers and writers reached it. The area was referred to as the Yellowstone region from then on, and the act of Congress setting it aside called it the tract of land in the Territories of Montana and Wyoming lying near the headwaters of the Yellowstone River. The first use of the name Yellowstone National Park was in correspondence between the secretary of the interior and the park's first superintendent Nathaniel P. Langford in 1872, according to park historian Aubrey L. Haines.