The Loire Valley was occupied in Palaeolithic times as attested by numerous archaeological sites in the department. The Celts were here, bringing crafts and trades, and the Romans occupied the area after the Gallic Wars. They built roads and founded cities such as Cenabum, on the site of present-day Orléans, and Sceaux-du-Gâtinais. Around 451, the Huns invaded the region but were repelled before reaching Cenabum. The Franks reached the Loire and Clovis I reigned in the area. A time of peace and prosperity ensued during the reign of Charlemagne.