...Swarmed with others to inundate the shore.

From the "Alta California" (San Francisco Newspaper in the 1850s)
"Rising with a tide of locusts,
She swarmed with others
to inundate another shore.
In America..."

The California Gold Rush began in January 1848 when carpenter James Marshall discovered gold at John Sutter’s lumber mill on the American River at Coloma. As news spread of the discovery, the ensuing gold rush led to an influx of hundreds of thousands of immigrants from every corner of the world.

The Naturalization Act of 1870 restricted all immigration into the U.S. to only "white persons and persons of African descent," meaning that all Chinese were placed in a different category, a category that placed them as ineligible for citizenship from that time till 1943. Also, this law was the first significant bar on free immigration in American history, making the Chinese the only culture to be prohibited to freely migrate to the United States for a time. Even before the act of 1870, Congress had passed a law forbidding American vessels to transport Chinese immigrants to the U.S. The reason behind the Chinese Exclusion Act of 1882 was to prevent an excess of cheap labor.