South Carolina in the American Civil War (English Wikipedia)

Spratt, L.W. (February 13, 1861). "THE PHILOSOPHY OF SECESSION: A SOUTHERN VIEW". South Carolina. Retrieved September 13, 2015. Presented in a Letter addressed to the Hon. Mr. Perkins of Louisiana, in criticism on the Provisional Constitution adopted by the Southern Congress at Montgomery, Alabama, BY THE HON. L. W. SPRATT, Editor of the Charleston Mercury, 13th February, 1861.

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Channing, Steven. Crisis of Fear. pp. 141–142. Retrieved September 6, 2015.
"The Charleston Courier". Charleston, South Carolina. December 22, 1860. Retrieved September 6, 2015.
Wightman, John T. (1861). "The Glory of God, the Defence of the South". Yorkville, South Carolina. Retrieved September 8, 2015.
"Courier". Charleston. January 24, 1865. Retrieved September 8, 2015.

Hall, Andy (December 22, 2013). "Not Surprising, Part Deux". Dead Confederates: A Civil War Era Blog. The states with the largest proportions of slaves and slave-holders seceded earliest.

Carey, Liz. (July 5, 2014). The dark corner of South Carolina. Independent Mail. Retrieved February 20, 2023.

Weiser, Kathy. (2017). Civil War Battles of South Carolina. Legends of America. Retrieved February 5, 2021.

"H. L. Hunley, Confederate Submarine," Archived 2007-10-14 at the Wayback Machine Department of the Navy – Naval Historical Center. Retrieved June 13, 2007.

Burger, Ken (February 13, 2010). "Too large to be an asylum". The Post and Courier. Charleston, South Carolina: Evening Post Publishing Co. Retrieved April 22, 2010. Paragraph 4

McQueen, John (December 24, 1860). "Correspondence to T. T. Cropper and J. R. Crenshaw". Washington, D.C. Archived from the original on March 25, 2015. Retrieved March 25, 2015.
Rhea, Gordon (January 25, 2011). "Why Non-Slaveholding Southerners Fought". Civil War Trust. Archived from the original on March 21, 2011. Retrieved March 21, 2011.
"Results from the 1860 Census". 1860 United States Census. 1860. Archived from the original on June 4, 2004. Retrieved June 4, 2004.
The 54th and Fort Wagner Archived September 30, 2007, at the Wayback Machine
"H. L. Hunley, Confederate Submarine," Archived 2007-10-14 at the Wayback Machine Department of the Navy – Naval Historical Center. Retrieved June 13, 2007.