Gallo-Roman pharmacist (female) brewing medicinal plants in a cauldron. On her left knee she is holding a writing tablet which could be the recipe for her preparation. In the background is an assistant. The term Gallo-Roman describes the Romanized culture of Gaul under the rule of the Roman Empire. The barbarian invasions beginning in the early fifth century forced upon Gallo-Roman culture fundamental changes in politics, in the economic underpinning, in military organization. 2nd century AD.