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 Quincy area. San Francisco, California has the highest per capita concentration of Chinese Americans of any major city in the United States, at an estimated 21.4%, or 172,181 people, and contains the second-largest total number of Chinese Americans of any U.S. city. San Francisco's Chinatown was established in the 1840s, making it the oldest Chinatown in North America and one of the largest neighborhoods of Chinese people outside of Asia, composed in large part by immigrants hailing from Guangdong province and also many from Hong Kong. The San Francisco neighborhoods of Sunset District and Richmond District also contain significant Chinese