What was John Quincy Adams' role related to the Adams-Onis Treaty?

John Quincy Adams played a critical role as the primary negotiator for the Adams-Onis Treaty, also known as the Transcontinental Treaty, which was signed in 1819. As the Secretary of State under President James Monroe, Adams was instrumental in the discussions that led to the agreement between the United States and Spain. The treaty resolved territorial disputes between the two nations, particularly concerning Florida and parts of the western territories, and established the boundaries of Spanish territory in North America.

His successful negotiation was a demonstration of his skills in diplomacy and an important aspect of his legacy. The treaty not only resulted in the acquisition of Florida by the United States but also set the stage for future territorial expansion and clarified boundaries, crucial for the U.S. as it sought to assert its influence in North America.