an ancient Roman unit of length equivalent to 1620 yards
An ancient Roman unit of itinerant distance of 1000 paces (mille passus, hence also "mile" from Latin mille, "1000"). Indirectly standardized to 5000 Roman feet by Agrippa in 29 BC. In modern times, Agrippa's Imperial Roman mile is empirically estimated to have been around 1481 meters (1620 yards, 4860 English feet, 0.92 English miles); compared with a modern mile, which is 5280 feet.