Why did the Irish immigrate to the United States during the 1840s and 1850s?
England invaded Ireland during the mid-1840s, displacing the Irish population. They fled a famine caused by severe overpopulation and a devastating blight on the potato crop. The expansion of the industrial revolution displaced Irish workers. Anti-Catholic violence forced the Irish to flee their homeland. None of those is correct. #2 is half right, in that [...]