Answer:
social structure , is correct
Slavery was THE great debate of the 1850's as was the question of continuing a union that threatened the lives and property of the South. It caused Lincoln's election in 1860 and fueled the movement to secession and war. Slavery was the dividing point over which there was a limit to the compromises that could be effected. It clearly drove the decade as it had shaped the whole century.
General jean-baptiste kléber
Basil I, also called the Macedonian and the founder of the
Macedonian dynasty of Byzantium, the dynasty whose rule was the most prosperous
time in the Byzantium history, started the revival of art and he ordered the
mosaic in order to, in his words, replace the one the impostors had broken.
Answer: By sending letters or having gatherings
Explanation: