Forty-four years after the establishment of Yellowstone, the service was created when President Wilson signed the National Park Service Organic Act on 25 August, 1916.
11th November 1918: WW1 Armistice of Compiègne is signed
11th November 2020
Forty-four years after the establishment of Yellowstone, the service was created when President Wilson signed the National Park Service Organic Act on 25 August, 1916.
Yellowstone became the first national park in the world after President Ulysses S. Grant signed The Act of Dedication law.