They could not marry, they could not own property, and they performed the most undesirable jobs: ditch diggers, canal builders, house boys. They were banned from most shops and public institutions and were the target of racist violence that went unpunished.
Los Angeles was home to an estimated 10,000 Chinese in the late 19th century -- almost all men who came to America to work on the railroads and ended up in desperate straits, crowded into a filthy Chinese ghetto near what is now Union Station.
A recent discovery by a new generation of railway workers building the extension of the Gold Line commuter rail line through Boyle Heights has unearthed this dark but largely forgotten period in Los Angeles history.
Last summer, workers found the skeletal remains of 108 people just outside the Evergreen Cemetery, one of the city's oldest and grandest burial sites.
A few weeks ago, the MTA told a community review board, which includes members of the Chinese Historical Society of Southern California, that the agency's archeological study found that the majority of the remains were from people of Asian descent.
Three-quarters of the remains were adults and most were male. The finding supports the belief among Chinese American historians that the bones belonged to Chinese male sojourners who died a century ago at a time when immigration laws sought to reduce the Chinese population by prohibiting Chinese women from entering the country.
The workers also found rice bowls, jade bracelets, Chinese burial bricks, Asian coins and opium pipes.
Historians have long believed that there was a potter's field for Chinese workers in Boyle Heights but did not know precisely where. The last known public record of the cemetery was from the 1920s.
The discovery has generated excitement within the Chinese American community along with concern about the way the MTA has handled the find.
Irvin Lai, one of the historical society's longest-serving members, said the remains belonged to men who lived at a time when Chinese were relegated to the lowest rung of society.
"They treated the Chinese just as bad when they were dead. They were treated like animals," said Lai, 78, who grew up in the pre-civil rights era and said the memory of being denied service at barbershops or restaurants because of his ethnicity still stings.
In the late 19th century, racial intolerance toward the Chinese was particularly heightened because some whites believed the Chinese were taking jobs away from them.