Plantation era is loosely regarded as the Antebellum era.
Among the earliest examples of plantations were the latifundia of the Roman Empire, which produced large quantities of grain, wine, and olive oil for export
 A "calendar era" indicates a span of many years which are numbered beginning at a specific reference date (epoch), which often marks the origin of a political state or cosmology, dynasty, ruler, the birth of a leader, or another significant historical or mythological event; it is generally called after its focus accordingly as in "Victorian era"

