Why did many whites call the Creek, Cherokee, Chickasaw, Choctaw, and Seminole groups the “Five Civilized Tribes”?

Why did many whites call the Creek, Cherokee, Chickasaw, Choctaw, Seminole "The Five Civilized Tribes"? Because they had adapted to many white ways. Yet they still didn't always share the same goals as the whites.

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following type of cultural development caused people to want and buy new products on the market :

d.summerains, the last one