Civil War , in U.S. History
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2007
...U.S. history in U.S. history, conflict...of the extension or prohibition of slavery in the federal...the seas much of the U.S. merchant marine...are C. C. Buel and R. U. Johnson, ed., Battles...1942 44), both by D. S. Freeman, and Lincoln...