14h 30min, sep 19, 1872 y - The First National Park
Description:
A bill creating the first national park, Yellowstone, was signed into law by President Ulysses S. Grant in 1872, followed by Mackinac National Park in 1875 (decommissioned in 1895), and then Rock Creek Park (later merged into National Capital Parks), Sequoia and Yosemite in 1890.Added to timeline:
Date:
14h 30min, sep 19, 1872 y
Now
~ 153 years ago