antebellum

/AE0 N T IH0 B EH1 L AH0 M/
adjective
  1. 1

    Of the time period prior to a war.

    โ€œA renewed sense of national pride arose in Hitler's antebellum Germany.โ€

  2. 2

    In the United States of America, of the period prior to the American Civil War, especially in reference to the culture of the southern states.

    โ€œSlavery was an accepted part of antebellum plantation life.โ€

Source: https://en.wiktionary.org/wiki/antebellum