Why did spanish colonists begin to rely more heavily on the atlantic slave trade by the mid-1500s?

When creating the treaty of versailles, each member of the 'big three' had different agendas. how did each member want to deal with rebuilding europe?meee lol in advance!

Areporter covering congress will probably try hardest to get an interview with

Plz i will give use examples from the lessons and your own personal experiences to compose at least one well-developed paragraph on the following: define the term reserved powers, and give an example of a reserved power of government.