Answer: Conflict over ideology. apx verified
Okay, so i'm not 100% sure if this is correct or not.
so slavery was an issue in the united states and divided the union because southern and northern states were not agreeing on it.
Northern states were for antislavery while southern states were for slavery.
(the second question i cannot answer, i'm so sorry, but i think it would have to involve with discrimination and labor)
Answer: Christianity
These two groups made up most of the new converts to Christianity. Roman roads and the Pax Romana helped to spread Christianity.
C: Populations
HOPE THIS HELPS
Reign of Terror also known as the Great Fear (La Grande Peur), although it didn't start until September 1793. I couldn't find anything else to fit that time frame.