My niece asked me, why is the history of canals in the United States also a history of immigration? What's the right answer?

Are all the children starting to learn world geography ~

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Because it is precisely because pirates from Europe landed in America that they renovated, enjoyed and recorded the history of the Grand Canal of America.

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So this is the saying that "the history of American canals is also the history of immigrants".

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In fact, since the American continent emerged from the water, there have been primitive rivers.

Europeans just, after directional dredging and reconstruction of the original river course, this is called the canal ~