William Ridgeway, Encyclopædia Britannica, Ninth Edition (1888)
“ Thus, by the advance of the Gauls from the north and the Picentes from the south, the Umbrians were shut off from the seaboard, and confined to the district known as Umbria in historical times. When Rome began the consolidating of Italy, Umbria consisted of the region bounded by the Ager Gallicus on the N., by Etruria (the Tiber) on the W., by Picenum on the E., and by the Sabines on the S. The Umbrians kept a desperate hold of this district, which lies between the two arms of the Apennines. This position indicates of itself that they had been driven before stronger foes. ”
