The Great Migration, or the relocation of more than 6 million African Americans from the rural South<span> to the cities of the North, </span>Midwest<span> and West from 1916 to 1970, had a huge impact on urban life in the </span>United States<span>.</span>
Weather is short term changes in the atmosphere. On the other hand climate describes what the weather is like over a long period of time.