Trivia: What President first declared the Grand Canyon a national monument?
Abraham Lincoln
Ulysses S. Grant
Andrew Jackson
Theodore Roosevelt
The correct answer is Theodore Roosevelt
So why is this answer correct? : During his two terms as U.S. President in the early 1900s, Theodore Roosevelt became known as the “Conservationist President” for persevering roughly 230 million acres of public land. That includes the Grand Canyon, which Roosevelt declared a national monument on January 11, 1908. It became a national park by an act of Congress 11 years later.