Final answer:
The Adams-Onís Treaty was important because it gave the United States control of Florida, Spain gave up its claim to parts of the Louisiana Territory, and it facilitated further expansion.
Step-by-step explanation:
The Adams-Onís Treaty, concluded in 1819, was important for several reasons. Firstly, it resulted in the United States gaining control of Florida from Spain. Secondly, Spain gave up its claim to parts of the Louisiana Territory. Additionally, the treaty helped pave the way for further expansion across the continent.
The Adams-Onís Treaty was significant because it transferred control of Florida from Spain to the United States, setting boundaries and allowing for further American expansion.
The Adams-Onís Treaty was important because it resulted in the United States gaining the territory of Florida from Spain. This treaty, concluded in 1819, set the border between the United States and New Spain and gave the United States complete control over Florida. As part of the treaty, Spain relinquished its claim to the Oregon territory, and the United States, at least temporarily, renounced its claim to Texas, allowing for further expansion across the continent.
The events leading to the treaty involved actions taken by General Andrew Jackson, who, in pursuit of Creek and Seminole raiders, crossed into Spanish Florida, ultimately leading the U.S. to pressure Spain into ceding the territory. The treaty also involved financial aspects, including the United States forgiving Spain's $5 million debt.
Therefore, in response to the multiple-choice question asking what territory the United States gained from Spain as a result of the Adams-Onís Treaty, the correct answer is A. Florida.