The potato famine pushed Irish immigration to record levels. List all the other reasons you read that applied to the Irish and/or to other European immigrants. What was their motivation?

Many of them were Catholic, and leaving due to religious prosecution. Many wanted a better life for themselves, and would send money back home.

Explanation:

it would have to be gasioline

disease was the number one killer of native peoples. they had had little exposure to the diseases of europe. this led to some villages being almost completely wiped out and some tribes destroyed.