His was the large movement of african americans from the southern u.s. to the northern u.s. in the early-20th century?

Explanation:

These are all measures that were backed by the Coolidge administration. Calvin Coolidge was an American politician and lawyer. He was also the 30th president of the United States (1923-1929). He had a reputation as a man of decisive action. He was also considered a small government conservative. He was significant in restoring the reputation of the office after Harding's administration and was a reasonably popular president.