In the late 1800s, the building of railroads in europe led to an increase in u. s.
immigration from which of the following areas?

As Europe grew more and more connected, western Europeans believed that the way to create a better future for them and their families was to leave Europe and come to America where they'd have better opportunities and the idea of a new world that was being founded by whoever came. That led to a lot of western Europeans, British, Spanish, Irish, migrating from Europe to America in the late 1800's.

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