History of turnpikes and canals in the United States (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "History of turnpikes and canals in the United States" in English language version.

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  • s:Northwest Ordinance. Art. 4:"The navigable waters leading into the Mississippi and St. Lawrence, and the carrying places between the same, shall be common highways and forever free, as well to the inhabitants of the said territory as to the citizens of the United States, and those of any other States that may be admitted into the confederacy, without any tax, impost, or duty therefor."

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