Answer:
1807
During this century more than half of the total, amounting to an average of about 50,000 enslaved Africans per year, was transported, mostly from the end of the Seven Years' War in 1763 until the end of the British trade in 1807.
1 ---> civil rights
2---> Cold War
3---> containment
4---> cosmonaut
5---> draft
6---> segregated
- economic disputes (restrictions of u.s trades)
- Royal Navy’s impressment of American seamen
(Keep in mind you didn't list any reasons so it would be kind of hard to answer)