Answer:
The Adams-Ons Treaty, also called the Transcontinental Treaty, was signed in 1819. It was one way that the United States got land in Florida that was owned by Spain. The United States and Spain worked together to make this treaty, which set the border between their North American territories. Under the terms of the treaty, Spain gave Florida to the United States, and the United States agreed to pay Spain $5 million and give up its claims to Texas. The treaty was signed on February 22, 1819, and both countries formally agreed to it in 1821.