USA HISTORY

Detailed explanation-1: -A presidio is a Spanish military fort. Presidios in the western U.S. were built by Spanish colonizers to protect territory they had claimed.

Detailed explanation-2: -The Presidio has served as a military reservation from its establishment in 1776 as Spain’s northern-most outpost of colonial power in the New World. It was one of the longest-garrisoned posts in the country and the oldest installation in the American West.

Detailed explanation-3: -The Presidio of San Francisco (originally, El Presidio Real de San Francisco or The Royal Fortress of Saint Francis) is a park and former U.S. Army post on the northern tip of the San Francisco Peninsula in San Francisco, California, and is part of the Golden Gate National Recreation Area.

Detailed explanation-4: -A presidio (English: jail, fortification) was a fortified base established by the Spanish Empire around between 16th and 18th centuries in areas in condition of their control or influence.