The U.S. in 1846 was not justified in going to war with Mexico, they didn't have justification to respond with violence.
Railroad industry which now had laws Government conduct
Answer:
A) Is it relevant to the subject or event?
C) Does it contain information that is outdated?
E) Does it explain a version of how the event occurred?
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The main difference is which part of Europe they came from, and the numbers of immigrants. There were many, many more "New Immigrants'" than old, 20 million people between 1880 - 1920. And the New Immigrants came mostly from southern and Eastern Europe, which meant they were almost all Catholics.