Why did young Chinese men come to California in the mid-1800s?

Young Chinese men came to California in the mid-1800s primarily to seek economic opportunities during the Gold Rush, which began in 1848. Many were drawn by the promise of wealth and the chance to improve their living conditions, as China faced economic hardships and social unrest. Additionally, they sought employment in industries such as mining, railroad construction, and agriculture, contributing significantly to California's growth. However, they also faced significant discrimination and challenges upon their arrival.