Statistics for occurrence #1 of “Mississippi River” in entry united-states-of-america-missouri of Harper's Encyclopedia of United States History:

...rime; to 95° 44′ W. Area, 65,370 square miles in 115 counties. Population in 1890, 2,679,184; 1900, 3,106,665. Capital, Jefferson City. Fernando De Soto ascends the west bank of the Mississippi River as far as the present site of New Madrid......1541 Louis Joliet and Pere Jacques Marquette descend the Mississippi to lat. 33°......1673 Robert Cavalier de La Salle descends the Mississip...
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