South China's Gold Rush Diaspora

From The Chinese Question: The Gold Rushes and  Global Politics, by Mae Ngai (W. W. Norton, 2021), Kindle pp. 32-36:

THE VAST MAJORITY OF Chinese gold diggers in California and Victoria hailed not from Shanghai but from southern China, especially the Siyi, or four counties, that lay on the western side of the Pearl River delta in Guangdong province. Remarkably, the vast majority came from just one county, Xinning [= Taishan]. Xinning was a poor place, owing to its rocky soil and hilly terrain, its cycles of drought and flood, and its relative isolation from the market. The land produced only enough rice to feed its people for half the year, so farmers grew sweet potatoes and peanuts on the hillsides to supplement their crops. Instability from British economic penetration and local political violence made conditions worse. Families sent sons and brothers to nearby cities for seasonal work as laborers, peddlers, and factory workers. No one knows who were the first Chinese from Xinning to venture to California, but they had probably already migrated from their home villages to Guangzhou or its environs. What is clear is that they established a classic pattern of chain migration to California and Victoria and, soon afterward, to the goldfields of Canada and New Zealand. Gold seekers from the Siyi founded the Chinese diaspora in North America and Australasia.

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THE GOLD RUSHES BROUGHT large numbers of Chinese and Euro-Americans into contact with each other on an unprecedented scale, far surpassing the limited experience of European colonial enclaves in Chinese port cities or the occasional Chinese visitors to the United States and England in the late eighteenth and early nineteenth centuries. The San Francisco Customs Office noted 325 arrivals from China in 1849 and 450 in 1850; in 1850 Chinese comprised only one percent of the California mining population. But 2,700 Chinese arrived in 1851 and 20,000 in 1852. Chinese comprised about 10 percent of the total population of California by the late 1850s, and upward of 25 percent in the mining districts. A similar pattern exists in Australia. By 1859 there were at 40,000 to 50,000 Chinese in Victoria, roughly 20 to 25 percent of the mining population. Historians of the Australian rush have remarked that many Britons had never “mixed so freely with foreigners, especially the Chinese.”