During the American Industrialization Period, poverty had swept through Mexico, leading to numerous rebellion, which resulted in Mexican Revolution. Because of the Mexican Revolution in 1910-1920, Mexicans immigrated to America in pursuance of economical support, and to escape revolution. Mexican migrated to America as sojourners, but they were a major part of labor during the Industrialization Period. Since, the Mexican were excellent and most efficient miners, Mexican companies contracted Mexican in America as miner or railroad workers. Similarly to Chinese, Japanese, and other immigrant group, Mexicans were also considered inferior compared to White. Mexicans were segregated into the colonial Mexicana. Also, White male contractor exploited