By: HISTORY.com Editors
U.S. immigration station Angel Island opens in San Francisco Bay
Referred to as the "Ellis Island of the West," Angel Island in California's San Francisco Bay opens January 21, 1910, as America's major port of entry for Asian immigrants. Over the next 30 years, an estimated 100,000 Chinese and 70,000 Japanese are processed through the station.
US Immigration Before 1965
For over 60 years, Ellis Island was the gateway for millions of Americans to the United States. Explore the legacy of this symbol of American immigration.
Established as a military reserve during the Civil War, 20 acres of 740-acre island was transferred for use as an immigrant station in 1905, according to the National Parks Service.
With San Francisco serving as a key immigration entry point for Asian immigrants, Angel Island, located 6 miles off the city's coast, was a preferred location for a station over the mainland. "Its location allowed for greater control over immigrant entry to the U.S., prevented immigrants on the island from communicating with immigrants on the mainland, and slowed the introduction of new or deadly diseases to the general population," according to the parks service.
After arriving by ship in the bay, immigrants without official documentation were ferried to the island where, the parks service notes, they were quarantined by race and sex "regardless of familial bonds" with children younger than 12 allowed to remain with their mothers. Medical examinations and other hearings could take days to years in a "prison-like environment."
In 1940, the station was moved to mainland San Francisco, and Angel Island is now a California state park.
Also on This Day in History
Discover more of the major events, famous births, notable deaths and everything else history-making that happened on January 21st
Related
Immigration
11 videosAs many as 1.3 million people may have been swept up in the Eisenhower-era campaign called 'Operation Wetback.'
An Ellis Island clerk and amateur photographer captured the wide-ranging origins of immigrants entering the United States in the early 1900s.
Annie Moore was a teenager from Ireland; Arne Petterssen was a Norwegian seaman who had overstayed his shore leave in New York.
About the author
HISTORY.com works with a wide range of writers and editors to create accurate and informative content. All articles are regularly reviewed and updated by the HISTORY.com team. Articles with the “HISTORY.com Editors” byline have been written or edited by the HISTORY.com editors, including Amanda Onion, Christian Zapata, Cristiana Lombardo and Adrienne Donica.
Fact Check
We strive for accuracy and fairness. But if you see something that doesn't look right, click here to contact us! HISTORY reviews and updates its content regularly to ensure it is complete and accurate.
Citation Information
- Article Title
- U.S. immigration station Angel Island opens in San Francisco Bay
- Author
- HISTORY.com Editors
- Website Name
- History
- Date Accessed
- October 29, 2026
- Publisher
- A&E Television Networks
- Last Updated
- February 18, 2025
- Original Published Date
- March 26, 2021