Though its construction started in 1672 the Castillo de San Marcos’ history embodies the struggle and contest of the entire colonial era as well as the foundations of American identity.

St. Augustine City Gates c.1912

Architecture & Construction

The Monument site consists of 20.5 acres and includes a reconstructed section of the walled defense line surrounding the city of St. Augustine incorporating the original city gates. The Castillo de San Marcos' architecture and detail are distinctive and unique. It is the oldest masonry and only extant 17th century fort in North America. As such it is an excellent example of the "bastion system" of fortification.

Timucuan Indians Planting Maize

Cultures

We seek to preserve and interpret the history and cultural influences of various groups associated with the site including:

Native Americans

Spanish

Colonial African Americans

English

Minorcan

United States

Spanish 4 pounder Cannon

Arms & Armament
The 16th century colonization of American paralleled the development of new weaponry. This technology centered on black powder (gunpowder) based systems. The cannon, first made of iron, later of bronze, became the weapon of political power projection and along with small arms of various types began to dominate the battlefields of both Europe and the New World. 

Malplaquet 1709

Battles & Sieges

The 300 years of the colonial era

(c. 1500-1800) were ones of constant warfare. As European countries vied with each other for the economic wealth in the “New Worlds” they increasingly came into military conflict. Encounters starting in Europe, Africa, Asia or the Americas quickly escalated into international global warfare. The Castillo de San Marcos weathered many attacks during these almost incessant colonial wars.