Native Americans in the United States were at best infrequent.. Scholars estimate tens to hundreds of thousands of Native Americans may have been enslaved by the Europeans, being sold by Native Americans themselves or Europeans. Slaves became a caste of people who were foreign to the English (Native Americans, Africans and their descendants) and non-Christians. The Virginia General Assembly defined some terms of slavery in 1705: The slave trade of Native Americans lasted only until around 1750. It gave rise to a series of devastating wars among the tribes, including the Yamasee War. The Indian Wars of the early 18th century, combined with the increasing importation
Scottish Americans rebellious colonies. According to the historian Arthur Herman: "Americans built their world around the principles of Adam Smith and Thomas Reid, of individual interest governed by common sense and a limited need for government." Nineteen of the fifty-six delegates who signed the Declaration of Independence came from Scotland or Ulster or, like the Scottish-tutored Thomas Jefferson, had ancestors there. Other founding fathers like James Madison had no ancestral connection but were imbued with ideas drawn from Scottish moral philosophy. Scottish Americans who made major contributions to the revolutionary war included Commodore John Paul Jones, the "Father of the American Navy",