White Democrats passed Jim Crow laws, establishing racial segregation in public facilities. In 1889, the legislature passed a constitutional amendment incorporating a "grandfather clause" that effectively disfranchised freedmen as well as the propertied people of color manumitted before the war. Unable to vote, African Americans could not serve on juries or in local office, and were closed out of formal politics for generations. The Southern U.S. was ruled by a white Democratic Party. Public schools were racially segregated and remained so until 1960.