Why did the spanish begin importing slaves from africa to work in the americas beginning in the 16th century

Africans were immune to some European diseases and experienced at european farming techniques. Apex

b.unemployment reached nearly 25 percent.

there are hundreds of postives ways to unite a country with another country here are a   few

1 peace treaty's peace treatys

are basically a document signing a allliance with one country and another.

2 gift

what i mean by this is for example how the french gave the americans the statue of libery a gift of peace.