National Park Service

Yosemite State Park

Jun 30, 1864

Yosemite Valley and Maripose Grove of Giant Sequoias became a state park.

Yellowstone National Park

Mar 1, 1872

Yellowstone is made the first national park.

Yosemite National Park

Oct 1, 1890

Yosemite was made a national park.

The Antiquities Act

Jun 8, 1906

President Roosevelt signed the Antiquities Act.

Stephen Mather, Assistant to the Secretary of Interior

Jan 21, 1915

Stephen Mather is sworn in as the Assistant of the Secretary of Interior.

The Mather Mountain Party Begins

Jul 14, 1915

The Mather Mountain Party began.

The National Park Service Organic Act

Aug 25, 1916

The National Park Service Organic Act was signed, this created the National Park Service. This was also the day Stephen Mather became the first director of the National Park Service.

Horace Albright

Jan 12, 1929

Horace Albright was sworn in as the second director of the National Park Service.