The Great Migration, or the relocation of more than 6 million African Americans from the rural South to the cities of the North, Midwest and West from 1916 to 1970, had a huge impact on urban life in the United States.
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for answering other peoples questions in the top left corner there should be a drop down where you can change the grade preference and the subject!
and when you ask a question they should let you choose the subject before you ask.
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Once when preparing for a Spanish test I used repetition to help me study. This technique was useful for me, because when I wrote out vocabulary words and continued to review them until the day of the test it helped me remember the words a lot easier.
By making steam engines a reliable power source
