23 mar 1820 ano - The Irish become the largest nationality in the United States

Descrição:

By the 1820s, hundreds of thousands of Irish immigrated to the US per year and made up much of the US frontiers. Irish immigrants bore xenophobic and anti-Catholic vitriol from already established citizens. As demographics began to change, tension increased between established citizens and immigrants.

Adicionado na linha do tempo:

Data: