shelter in the Chinatowns of large cities. The vacant agricultural jobs subsequently proved to be so unattractive to the unemployed white Europeans that they avoided the work; most of the vacancies were then filled by Japanese workers, after whom in the decades later came Filipinos, and finally Mexicans. The term "Chinaman", originally coined as a self-referential term by the Chinese, came to be used as a term against the Chinese in America as the new term "Chinaman's chance" came to symbolize the unfairness Chinese experienced in the American justice system as some were murdered largely due to hatred of their race and culture. Exclusion era Settlement Across the country, Chinese immigrants clustered in Chinatowns. The largest population was in San Francisco. Large numbers came from the Taishan area that proudly bills itself as the No. 1 Home of Overseas Chinese. An estimated half a million Chinese Americans are of Taishanese descent. At first, when surface gold was plentiful, the Chinese were well tolerated and well received. As the easy gold dwindled and competition for it intensified, animosity to the Chinese and other foreigners increased. Organized labor groups demanded that California's gold was only for Americans, and began to physically threaten foreigners' mines or gold diggings. Most, after being forcibly driven from the mines, settled in Chinese enclaves in cities, mainly San Francisco, and took up low end wage labor such as restaurant work and laundry. A few settled in towns throughout the west. With the post Civil War economy in decline by the 1870s, anti-Chinese animosity became politicized by labor leader (and famous anti-Chinese advocate) Denis Kearney and his Workingman's Party as well as by Governor John Bigler, both of whom blamed Chinese "coolies" for depressed wage levels and causing European Americans to lose their jobs. Discrimination The flow of immigration (encouraged by the Burlingame Treaty of 1868) was stopped by the Chinese Exclusion Act of 1882. This act outlawed all Chinese immigration to the United States and denied citizenship to those already settled in the country. Renewed in 1892 and extended indefinitely in 1902, the Chinese population declined until the act was repealed in 1943 by the Magnuson Act. (Chinese immigration later increased more with the passage of the Immigration and Nationality Act of 1952, which abolished direct racial barriers, and later by the Immigration and Nationality Act of 1965, which abolished the National Origins Formula. ) Official discrimination