The term 'Antebellum' refers to the period before the American Civil War, which lasted from 1861 to 1865. The term 'Prewar' is used to describe the time before the war began, while 'Postwar' is used to describe the time after the war ended. 'Stater' is a term used to refer to a person who lived in a state during the Antebellum period, and 'Dred' is a reference to Dred Scott, an African-American man who sued for his freedom in the Supreme Court in 1857.