Native Americans in the United States reached the West Coast in the 1770s, smallpox rapidly killed at least 30% of Northwest Coast Native Americans. For the next eighty to one hundred years, smallpox and other diseases devastated native populations in the region. Puget Sound area populations, once estimated as high as 37,000 people, were reduced to only 9,000 survivors by the time settlers arrived en masse in the mid-19th century. Smallpox epidemics in 1780–82 and 1837–38 brought devastation and drastic depopulation among the Plains Indians. By 1832, the federal government established a smallpox vaccination program for Native Americans ("The Indian Vaccination Act of 1832"). It was
Chinese Americans in Dallas–Fort Worth with Houston, has one of the state's two major settlements of Chinese Americans. In the 2000 U.S. Census, 17% of the foreign born residents of Plano originated from China. The 2010 U.S. Census stated that there were 14,500 ethnic Chinese in Plano. Out of the cities with 250,000 and more residents, Plano has the sixth largest percentage of ethnic Chinese, which made up 5.2% of the city's population. Charlie Yue, the executive vice president of the Association of Chinese Professionals, stated that he estimated that about 30,000 Plano residents are Chinese and that many "don't participate in government activities, like