"<span>a. Johnson's behavior and use of the veto prevented Republicans from getting their bills passed without Southern Democrats supporting them" is the best option, since Johnson sympathized with the South and was opposed to many aspects of Reconstruction.</span>
Most of Afro American were slaves until the end of civil war. After that they were struggling to have civil participation. The Civil Rights Act in 1821 encouraged many Afro American crongressman to talk about it. However, In the south the white Democrats terrorized black Americans with lynch mobs and instituted a convict system in which many Afro-Americans were forced to work free in mines, plantations, public work projects. Few Afro American had their own land. They were exploited as sharecroppers.
The renaissence came after a great migration from the south into the African American neighborhoods of the Northeast and Midwest.
Answer:
The modern use of chemical weapons began with World War I, when both sides to the conflict used poisonous gas to inflict agonizing suffering and to cause significant battlefield casualties. ... Chlorine, phosgene (a choking agent) and mustard gas (which inflicts painful burns on the skin) were among the chemicals used.
