Question

What made the United States a transcontinental power in 1819?

A. Adams-Onis Treaty
B. Louisiana purchase
C. Monroe Doctrine
D. War of 1812
Is the answer A?

Answer 1

Yes, you're right.

Answer 2

[AI-generated answer — Explain Bot]

Yes, the answer is A. The Adams-Onis Treaty is what made the United States a transcontinental power in 1819. It was a treaty between the United States and Spain that ceded Florida to the United States and defined the boundary between the United States and New Spain. This acquisition of Florida further expanded the territory of the United States and solidified its presence as a transcontinental power, extending its control over a vast area of land from the Atlantic Ocean to the Pacific Ocean.