Why were chinese american immigrants frequently detained when trying to immigrate through angel island?

They were subject to more scrutiny and discrimination because of their race.

Many in this era believed that the immigrants were stealing American jobs. While Irish and Italian immigrants were also discriminated upon, they often assimilated into US society. Chinese immigrants were of a different race and were more easily discriminated upon as a result.

His administration defeated right and left-wing anti-Bolshevik armies in the Russian Civil War from 1917 to 1922 and oversaw the Polish–Soviet War of 1919–1921. Responding to wartime devastation, famine, and popular uprisings, in 1921 Lenin encouraged economic growth through the market-oriented New Economic Policy.

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