Admiral chester nimitz learn of the japanese plans at the battle of midway from the intercepted messages. also, is is because the united states, they had broken the japanese naval code and they were able to read a significant part of the messages to give him a good idea of japanese intentions.
A way for fugitive slaves to escape to Canada.
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Answer: In the late 1800s, people in many parts of the planet decided to go away from their homes and immigrate to U.S. Fleeing negligence, land and job shortages, rising taxes, and famine, many came to the U. S. because it was perceived because of the land of economic opportunity.
