What was the effect of the 15th amendment?
a. it legalized the “separate but equal” doctrine.
b. it gave black men the right to vote.
c. it struck down the jim crow laws in the south.
d. it made former slaves citizens of the united states.

What is the main difference between primary and secondary sources? a. primary sources are historical documents, and secondary sources are modern-day documents. b. primary sources are derived from museums and archives, and secondary sources are created by history students and academics. c. primary sources are found in ancient places with a rich history, and secondary sources are found in historical journals and blogs. d. primary sources are created during a particular historical era, and secondary sources are created by studying primary sources.