The theory was that Aryans were superior to all other races. He also expressed his hatred for Jews in the book.
Impact of the Age of Exploration
Explorers learned more about areas such as Africa and the Americas and brought that knowledge back to Europe. Massive wealth accrued to European colonizers due to trade in goods, spices, and precious metals. ... New food, plants, and animals were exchanged between the colonies and Europe.
The scientific Revolution helped bring about new technologies and machinery, and the Enlightenment helped people start looking at life differently
They were persecuted for their faith in god