After ratification of the Fifteenth Amendment, voting rights could not be denied based on race.
voting rights could not be denied based on gender.
poll taxes became illegal and unconstitutional.
literacy tests became illegal and unconstitutional.

What was one step that charlemagne took to unite his kingdom? a. he chose a single strong heir to inherit his throne. b. he drove muslim forces out of europe. c. he created and supported schools. d. he declared himself head of the catholic church.