when was the national park system established
National Park Mashups How Old is the System? The National Park Service was created by an Act of Congress and signed by President Woodrow Wilson on August 25, 1916. Yellowstone National Park was established by an Act signed by President Ulysses S. Grant on March 1, 1872, as the Nation's first national park.ugust 25, 2016 is the 100th Birthday of the National Park Service. Starting with Yellowstone in 1872 there are over 400 units in the National Park Service today.