The word for today is…
antebellum (adj) – Belonging to the period before a war, especially the American Civil War.
Source : The Free Dictionary
Etymology : ante-bellum also antebellum, from Latin phrase ante bellum, literally “before the war;” see ante- + bellicose. In U.S., usually in reference to the American Civil War (1861-65); attested in that specific sense by 1862 (it appears in a June 14 entry in Mary Chesnut’s diary).
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