BELGICA Gallia, one of the three divisions of Gaul men-
Belginum tioned by Cæsar, and bounded by the ocean on the north, the rivers Seine and Marne on the west, and the Rhine on the east. The southern boundary differed at different times. Augustus added to Gallia Belgica the Sequani and Helvetii, who till then had formed part of Celtic Gaul. The Belgæ are described by Cæsar as the bravest of the Gauls, because untainted by the importation of foreign luxuries.