On This Day in History February 26

On this day in history, February 26, 1919, the Grand Canyon became a national park.

Located in northwestern Arizona, the Grand Canyon is the product of millions of years of excavation by the mighty Colorado River. The chasm is exceptionally deep, dropping more than a mile into the earth, and is 15 miles across at its widest point. The canyon is home to more than 1,500 plant species and over 500 animal species, many of them endangered or unique to the area, and it's steep, multi-colored walls tell the story of 2 billion years of Earth's history.

In 1540, members of an expedition sent by the Spanish explorer Coronado became the first Europeans to discover the canyon, though because of its remoteness the area was not further explored until 300 years later. American geologist John Wesley Powell, who popularized the term "Grand Canyon" in the 1870s, became the first person to journey the entire length of the gorge in 1869. The harrowing voyage was made in four rowboats.

In January 1908, U.S. President Theodore Roosevelt designated more than 800,000 acres of the Grand Canyon a national monument; it was designated a national park under President Woodrow Wilson on February 26, 1919.