(FOXNEWS) – Yellowstone National Park, an almost
mystical  2.2-million acre wonderland of dynamic
hydrothermal activity, breathtaking scenery and
spectacular wildlife, was established on this day in
history, March 1, 1872.        

It was the first national park in the United States and,
to most people around the world, the first known on
the planet. It quickly inspired an international
conservation movement in the wake of the Industrial
Revolution.

This poster was created in 1938 as part of the Works
Progress Administration, or WPA.