In the 1920s, tensions grew between rural and urban Americans over social and cultural issues. City dwellers embraced modernism and new ideas, while rural residents generally favored traditional religious and social values. This divide was evident in the Scopes Trial over teaching evolution in schools. Immigration restrictions in 1924 and the resurgence of the Ku Klux Klan also reflected social tensions, as did Prohibition which banned alcohol but failed to stop drinking and boosted crime instead.