Campanian
The Campanian is, in the ICS' geologic timescale, the fifth of six ages of the Late Cretaceous epoch (or, in chronostratigraphy: the fifth of six stages in the Upper Cretaceous series). The Campanian spans the time from 83.6 ± 0.7 Ma to 72.1 ± 0.6 Ma (million years ago). It is preceded by the Santonian and it is followed by the Maastrichtian.
Pompeian era
The Pompeian Era was a calendar era used by Hellenistic cities in Roman Palestine, in particular the cities of the Decapolis. The calendar counted the years from the region's conquest by the Roman general Pompey in 63 BCE. Many of these cities had been self-governing "poleis" before the Jewish Hasmoneans had conquered them in the 2nd century BCE. The Romans restored their self-governing status, so the conquest amounted to a "new foundation" of the cities, and they made that date the epochal year of their calendars. Some other nearby cities, such as Philadelphia, adopted the era even though they had never been under Hasmonean rule.