C. Mongols I believe that it happened in 1223
There were many ways varying from plain sabotage where they claimed that the Portuguese merchants were thieves, up to more controversial means such as ordering their assassinations and telling the king that he should have them killed because they didn't give him presents and plan to enrich their wealth at his expense.
The Union won the war because:
1) There factories were built up; the South was mostly farms
2) They had the support of African slaves located in the South
3) They had larger armies
4) They had a more built up navy
5) They were able to deprive the South of their economy and allies
hope this helps
Through laws that guaranteed them equal access to education
