The American Statehood Period begins.

With the signing of the Adam-Onís Treaty, Florida went from a Spanish colony to an American territory. To Americans, this opened up what had been an international southern border between the United States and Spain. A fascination with the Historic Coast as a land of antique wonder sprouted a tourist industry throughout the region. The climate of Florida also attracted many sick northerners during the winter, and St. Augustine's status as a convalescence retreat started to grow.

This treaty between the United States of America and Spain transferred ownership of East and West Florida to the U.S.

This two story mansion is made out of coquina, a stone native to Florida, and is one of a short list of buildings constructed by the Spanish that is still standing. It is now a house museum with rooms decorated to depict life in an 1800s boarding house. 

In return for Spain's military support during the American Revolutionary War, the newly formed United States of America returned the peninsula of Florida to Spanish control. Because they were allies with the United States (which relied upon chattel slavery for its economy) Florida's Spanish government did not offer sanctuary to enslaved people escaping from the Carolinas. Thus, the southern route of the Underground railroad was cut off.

The Treaty of Paris trades Havana for St. Augustine, marking the start of the British Period of St. Augustine's history.

"Great Britain claim Florida through the treaty that ends the French & Indian War. Nearly all of St. Augustine's residents, including the Fort Mose community, relocate to Cuba. Fort Mose is abandoned permanently." - National Park Service

British forces capture Havana, a major port of the Spanish Empire that was considered far more important than St. Augustine.

Twelve years after the original settlment was destroyed, Fort Mose is rebuilt near the site of the original community. Many African-descended residents are ordered to move out of the city and into the frontier. 

"67 residents in 22 houses." -National Park Service

After evacuating the residents of the Fort Mose to the Castillo de San Marcos, Captain Francisco Menendez and his militia fight the army of General James Oglethorpe. Now known as the Battle of Bloody Mose, this battle was a part of a full-scale invasion which is now called the War of Jenkins Ear. During the brutal skirmish, the fort and community at Fort Mose were destroyed. However, the militia successfully warded off the British with their fierce battle tactics.