Statistics for occurrence #1 of “Fort Sumter” in chapter 12 of Benson J. Lossing, Pictorial Field Book of the Civil War. Volume 1.:

...and that gentleman, with the approval of the Secretary of War and General Scott, visited Charleston harbor. In company with Captain Hartstene, of the Navy, who had joined the insurgents, he visited Fort Sumter on the 21st of March, by permission of Governor Pickens, and ascertained that Major Anderson had provisions sufficient for his command until the 15th of April; and it was understood between them th...
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