Knights were indeed lower than vassals and held less prestige in medieval society. It's not true though, that knights didn't have enough prestige in medieval society. Vassals swore to the king or the ruler of a region, whereas knights often swore to vassals, so they still had people under them, but they were not at the top.
Intergrated but uneqaul
After slave labour, americans found itself with a problem of intergrating blacks into the system, but the main headaches after 1920's was the question of equality, that led to emergence of rigorous activism.
Answer:
The Battle of Fort Sumter in 1861
Explanation:
In most history books, you will find that The Battle of Fort Sumter is considered to be what started the American Civil War.
Answer: the compromise of 1876
Explanation: