1848-1855: California Gold Rush - Many immigrants arrived in California to reap the benefits of the gold rush. Whereas Chinese immigration had previously seen only modest levels of a few hundred per year, thousands arrived at the peak of the rush, and California became a significantly more cosmopolitan state. Latin Americans as well arrived in great numbers, joined by displaced Europeans fleeing the revolutions of 1848. These immigrants saw enormous economic gains, but the gains of the Chinese would soon be (jan 1, 1848 – jan 1, 1855)