George III was King of Great Britain from 1760 to 1820. He was England's longest ruler before Queen Victoria, he is most well known for being the English King during the American Revolutionary War.
Answer: The Declaration of Independence.
The Declaration of Independence (July 4, 1776) announced that the Thirteen Colonies would regard themselves as independent sovereign states, and were no longer under the British rule. The Declaration contended that <em>King George III had violated the agreement</em> between himself as a governor and the Americans as the governed. This targeted King George III as the primary reason for colonial discontent.
King George III never fully recovered from the loss of the American colonies.
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Joint rule of Oregon country ended in 1846, but the British continued to help the United States govern. Option A is correct.
<h3>Was the joint rule important in the Oregon Country?</h3>
The United States and the United Kingdom signed the Treaty of Oregon on June 15, 1846, ending 28 years of joint occupation of the Pacific Northwest.
The border between the two countries was founded by the treaty, but the British helped the US govern.
Therefore, option A correct.
Learn more about the Oregon country, refer to:
brainly.com/question/18152742
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