The 1920s saw major social and cultural changes in the United States following World War I. Women's fashion became more liberated with shorter dresses and hairstyles like the bob. Jazz music flourished as an African American art form. Popular leisure activities included going to movie theaters and speakeasies. Politically, Republicans controlled the presidency advocating for business over regulation. The booming economy was driven by consumerism, installment buying, and automobiles provided by Henry Ford's assembly line production. Socially, women gained independence while the Harlem Renaissance celebrated a new African American cultural identity.