 Complete the following phrase:  The first significant Chinese immigration to North America began with the California Gold Rush of 18481855 and it continued with subsequent large labor projects, such as the building of the First Transcontinental Railroad. During the early stages of the gold rush, when surface gold was plentiful, the Chinese were tolerated by white people, if not well received. However, as gold became harder to find and competition increased, animosity toward the Chinese and other foreigners increased. After being forcibly driven from mining by a mixture of state legislators and other miners the Foreign Miners Tax, the immigrant Chinese began to settle in enclaves in cities, mainly San Francisco, and took up low-wage labor, such as restaurant and laundry work. With the 