Statistics for occurrence #1 of “Mississippi rivers” in entry cairo-occupation-of of Harper's Encyclopedia of United States History:

...ext" xmlns="http://www.w3.org/TR/xhtml1/strict"> The city of Cairo, Ill. (population, 1900, 12,566), is situated near the extremity of a boatshaped peninsula, at the confluence of the Ohio and Mississippi rivers , 175 miles below St. Louis. It is a point of great importance as the key to a vast extent of navigable waters, and to it National troops were sent at an early period in the Civil War. Both the nati...
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