In addition to the expulsion of African Americans from "sundown towns," Chinese Americans were driven out of some towns. For example, in 1870, ethnic Chinese made up one third of the population of Idaho, where they had worked on railroads and in mines. Following a wave of violence and an 1886 anti-Chinese convention in Boise, almost none remained by 1910. The town of Gardnerville, Nevada, blew a daily whistle at 6 p.m. to alert Native Americans to leave by sundown. Jewish Americans were excluded from living in some sundown towns.