Statistics for occurrence #1 of “United States” in year 1863, month August of Rebellion Record: a Diary of American Events, Diary from December 17, 1860 - April 30, 1864:

...r, establishing camps for such freed people of color as are out of employment at all military posts within his department, where slavery had been abolished by the proclamation of the President of the United States ; and setting forth rules for their government. At Chicago, Ill., the City Council unanimously passed an ordinance providing for an appropriation for raising bounties for volunteers, to act as ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
United States (United States) 100,886 2,132 0 0 0 user votes
United States (New Mexico, United States) 6 0 0 0 0 user votes

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