Slavery for sure. I believe the second one is economic differences between the North and the South.
Answer:
Which of the following contributed most to Japan's defeat of the invading Mongols in the 13th century? An army of samurais joined forces to fight the Mongols. Japanese samurais joined forces with Korean warriors to fight the Mongols. Typhoons forced the Mongols to retreat and then destroyed their ships.
Explanation:
they joined forces with korean warriors.
Answer:
The answer to this would be: B. Angelina Grimke
Explanation:
Hopefully this helped.
