Were there any humans in North America before Britain colonized the United States?

Of course, some people, Indians, accompanied the war with Indians during the founding of the United States. The War of Independence was a war between Britain and the colonial people. Strictly speaking, the colonial people cannot be said to be only descendants of the British, who account for the vast majority, but there are also immigrants from other countries.

In addition, the ancestors of the Japanese can't be said to be from China. The origin of the Japanese nation is basically mixed-race, including primitive people from Japan, "crossing people" who immigrated from China and North Korea, and Nanyang people who crossed the sea, which is very complicated.