What was the north’s concern with the reconstruction

Following the Civil War, the United States entered a period known as Reconstruction. Rebuilding the country had numerous effects on the South but also had a significant impact on the North as well. Some states in the North denied newly freed slaves the right to vote.

Explanation:

it is the dominance of   the spanish language and roman catholic region in mexico, french being the official language of several african countries, and the existence of a western-style government in south asian countries

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.