__________ was an innovator and inventor best known for introducing the assembly line to his auto plants, which greatly increased productivity.

__________ was an early and well-known promoter of sex education and contraceptives, which were largely illegal, in the 1910s. She coined the term "birth control."

__________ was President of the United States from 1928 to 1932; he had been the secretary of commerce in both the Harding and Coolidge administrations. He promoted cautious foreign and domestic policies, including a hands-off approach to regulating business.

__________ was a governor of Massachusetts and vice president for Warren G. Harding from 1920 to 1923, when he assumed the presidency upon Harding's death. He helped restore confidence in the presidency after the scandals of the Harding administration.

__________ was a movement that urged people to return to biblical, patriarchal, and denominational authority—to what came to be called "old-time" religion. Its followers rejected liberalism above all for its willingness to question the historical truth of the Bible.

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