Yellowstone National Park.
Yellowstone national park
wyoming
The very first national park in the world was Yellowstone National Park. It was created in 1872 by the Department of the Interior.
Established in 1872, Yellowstone National Park in Wyoming is the world's first National Park.
lincoln
In 1872 it was named Yellowstone national park making it the worlds first national park but if you mean the actual land formation I believe it was maybe a few million years ago.
kaziranga was first a national park but in 1950 it was declared as wildlife sanctuary
Woodrow Wilson made this declaration.
George Washington declared our first national Thanksgiving Day to express gratitude for the new Constitution. (If you are using this answer for the History Mystery Message Challenge, it is Thanksgiving-number 7)
Yellow Stone National Park is the first national park in the US. It is Wrangell-St. Elias that is the largest.
Christmas wasn't declared a federal holiday in the USA until June 26, 1870.