Started in 1846 large numbers of Chinese Americans open up businesses near Portsmouth Square, laying down the foundations for the eventual formation of Chinatown in San Francisco.
"San Francisco's Chinatown is the largest Chinese community on the West Coast, and the second largest in the US next to New York City's settlement. One hundred thousand people live here, almost one eighth of San Francisco's entire population. . Chinatown is about eight blocks long and has two long main streets. Stockton is home to many Chinese markets and stores. "