The Ohlone people are the first known inhabitants of the land.
Spanish colonists from northern Mexico establish El Presidio, a frontier fort, and build the first structure on the site of the Officers’ Club.
An earthquake seriously damages the Presidio.
A year after Mexican independence, the Presidio changes flags but not personnel, and becomes a Mexican frontier outpost.
The United States seizes control of the Presidio, California, and the southwest.
President Millard Fillmore reserves the Presidio for the U.S. Army.
Fort Point is built at the entrance to the Golden Gate.
The Presidio participates in the Indian Wars in the West.
The Civil War establishes the Presidio as a strategic military post and touches off a period of expansion.
Coastal defense batteries are built on the Presidio’s western bluffs.
Presidio cavalry units, including the African-American “Buffalo Soldiers,” patrol the national parks in the Sierras before the creation of the National Park Service.
Volunteers train for the Spanish-American War in the Philippines.
U.S. Army General Hospital (renamed Letterman Hospital in 1911) opens to care for soldiers from the Philippine-American War.
The Presidio serves as a refuge for San Franciscans following the earthquake and fire.
Major Harts creates the first master plan for the Presidio.
Fort Winfield Scott is constructed in the Mission style to support the most extensive coastal fortifications on the West Coast.
Portions of the Presidio shoreline and the adjacent Marina are filled in to host the Panama-Pacific International Exposition.
The Presidio serves as an officers’ training center during World War I.
The Presidio serves at the U.S. Western Defense Command Headquarters and trains troops for the Pacific Theater. Letterman Hospital receives the returning wounded. General DeWitt signs the order for the internment of Japanese and Japanese-Americans.
The new Letterman Army Medical Center opens to serve the wounded returning from Vietnam.
The Golden Gate National Recreation Area (GGNRA) is established; legislation determines that the Presidio will join the GGNRA should it become excess to the military's needs.
The Base Realignment and Closure Commission designates the Presidio for closure.
The U.S. Sixth Army departs and the Presidio officially transfers to the National Park Service (NPS).
The Presidio Trust assumes management responsibility for the interior lands of the park.
Crissy Field marsh and the historic air field are restored by the NPS, the Parks Conservancy, and community stewards; Presidio Vegetation Management Plan is adopted.
The Presidio Trust Management Plan is adopted.
Letterman Digital Arts Center and Bay School of San Francisco open at the Presidio.
Presidio Trust earns Urban Land Institute Award for Excellence.
The Walt Disney Family Museum opens following a complete historic rehabilitation of a Montgomery Street Barracks building.
Restoration at El Polin Spring and the Main Parade Ground is completed.