From – Wikipedia, the free encyclopedia:
Antebellum is a Latin word meaning before war (ante means before and bellum means war).
In United States history and historiography, the term antebellum is often used to refer to the period of increasing sectionalism leading to the American Civil War, instead of the term “pre-Civil War”. In that context, the Antebellum Period is often considered to have begun with the Kansas-Nebraska Act of 1854, although sometimes it is defined as extending back as early as 1812. Sometimes it is called the Old South. The time period after the civil war is called the postbellum or reconstruction era.