Statistics for occurrence #1 of “State of Ohio” in chapter 6 of Horace Greeley, The American Conflict: A History of the Great Rebellion in the United States of America, 1860-65: its Causes, Incidents, and Results: Intended to exhibit especially its moral and political phases with the drift and progress of American opinion respecting human slavery from 1776 to the close of the War for the Union. Volume I.:

... State of Ohio
Persistent hostility of Congress to Slavery Extension purchase of Louisiana El Whitney and his Cotton-Gin Colonizat...
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