Statistics for occurrence #1 of “Fort McHenry” in page 449 of Benson J. Lossing, Pictorial Field Book of the Civil War. Volume 1.:

...erward the Fifth New York Regiment (Zouave), Colonel Abraham Duryee, occupied Federal Hill, and thereon built the strong earthwork known as Fort Federal Hill, whose cannon commanded both the town and Fort McHenry . The 14th of May was a memorable one in the annals of Maryland, as the time when the tide of secession, which for weeks had been threatening to ingulf it in revolution, was absolutely checked, an...
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