Slavery among Native Americans in the United States exported to the "sugar islands". The British settlers, especially those in the southern colonies, purchased or captured Native Americans to use as forced labor in cultivating tobacco, rice, and indigo. Accurate records of the numbers enslaved do not exist. Scholars estimate tens of thousands of Native Americans may have been enslaved by the Europeans, being sold by Native Americans themselves. 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
Chinese Americans and financial incentives for innovation. Ethnic Chinese have been successful in starting new firms in technology centers across the United States, including California's Silicon Valley. Chinese Americans have been disproportionately successful in high technology sectors, as evidenced by the Goldsea 100 Compilation of America's Most Successful Asian Entrepreneurs. Chinese Americans accounted for 4% of people listed in the 1998 Forbes Hi Tech 100 List. Annalee Saxenian, a UC Berkeley professor, whose research interests include the contribution of Chinese immigrants on America's technology concludes that in Silicon Valley, carried out a study that showed that since 1998, one out of five