The last country in the world to challenge the United States control of Oregon was Great Britain. Oregon was won in the War of 1812.
I think you forgot to give the choices along with the question. i am answering the question based on my knowledge and research. <span>The person most known for contributing to the final form of the constitution was James Madison. I hope that this is the answer that has actually come to your desired help.</span>
Answer:
Reasons why chiefs signed the treaty included wanting controls on sales of Māori land to Europeans, and on European settlers. They also wanted to trade with Europeans, and believed the new relationship with Britain would stop fighting between tribes
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Japan adopted Buddhism and central government from China.
"<span>The North opposed the idea that a state could leave the Union, but the South supported it" is the best option from the list but all this had to do with the issue of slavery. </span>