You want to go to primary sources. Check out the
United States Congress Joint Select Committee to Inquire into the Condition of Affairs in the Late Insurrectionary States, made to the two Houses of Congress February 19, 1872
(screenshot used in this post is from page 500.)
Start going through documents like these and finding the history that has been covered up.
This whole area of the Democrats obfuscating the truth of the Civil War is explored in depth by Dinesh D'Souza. Check out his interview with Carol Swain
