About how many immigrants came to the united states between 1820 and 1830​

Until the middle of the 19th century, immigrants had been arriving at a slowly increasing rate: 8,385 in 1820; 23,322 in 1830; and 84,066 in 1840. Between 1830-39 over 538,381 arrived but the next ten years saw this increase to 1,427,337. In 1854 a record 428,000 people arrived in the United States.

the war in the pacific

explanation:

the group i'm selecting: greeks.

a first group of greek immigrants came to the us in the 1850s. the second group came to america starting in the 1890s due to economic opportunities they didn't have back in their home caused by the hardships of ottoman rule. greek immigration was 90% male, many of them expected to work and return to greece after earning enough capital, but ultimately had to remain in the us after the greek genocide.