

In the 1890s, the United States sought to expand its influence over the Caribbean with the help of its navy. In 1865, to facilitate further expansion of the city, the walls along the eastern side of the island were demolished. In 1771, the city housed the largest Spanish fortification in the Americas, the San Cristóbal fortress.īefore the 19th century, the area outside the city walls, occupying the east side of Old San Juan Island, was almost uninhabited. Another historical site, the El Morro castle, dates back to 1584. One of its architectural jewels, La Fortaleza, also known as the Santa Catalina Palace, is the oldest executive mansion still in use on the American continent it was built between 15. In 1983, this lovely part of town, characterized by narrow, blue cobblestone streets, and picturesque, brightly colored buildings (some of which date back almost 500 years), was declared by UNESCO a World Heritage Site. This was in keeping with the custom of christening the town with both its formal name and that which Christopher Columbus had originally given to the islands, honoring John the Baptist.ĭuring colonial times, most of the city population resided in what is now known as Old (Viejo) San Juan.

In 1521, the words "San Juan" were added to its official name, thus making it "San Juan Bautista de Puerto Rico". Founded by Spanish colonists in 1509, at a site then known as "Puerto Rico" (which means Rich Port in Spanish), San Juan is the third oldest capital in the Americas established by Europeans.
