The use of African slave labour was not new. The Spanish and Portuguese had been using African slaves since the 16th century. However, the Atlantic slave trade of the 18th century was a new kind of slavery and was on a scale much greater than ever before.
Answer:
New immigrants and new land meant a bigger and stronger country. It also meant displacing thousands of Native Americans and the continued spread of slavery.
Explanation:
Remember the conquistadors were in search of gold on the Native American lands. They probably treated them harshly because they were greedy and wanted to exploit the riches of the land so they wanted the Indians gone.