To keep the settlers safe when they were under attack.
The Spanish people built the Castillo De San Marcos
Castillo de San Marcos is a fort in Florida.
To protect the spanish
Fort Matanzas NM Castillo de San Marcos NM
Construction of the Castillo de San Marcos commenced in 1672, construction lasted for 23 years until completion in 1695
Castillo de San Marcos was created in 1695.
It was built/founded during 1672-1695
It was built in 1672; it is 341 years old.
The oldest stone fort in the United States in the Castillo de San Marcos in St Augustine Florida.
The area of Castillo de San Marcos is 1,294,994.055168 square meters.
143 people help build it
The oldest stone fort in the United States in the Castillo de San Marcos in St Augustine Florida.