The Picts were a confederation of tribes in what later was to become central and northern Scotland from Roman times until the 10th century. They lived to the north of the Forth and Clyde. They were the descendants of the Caledonii and other tribes named by Roman historians or found on the world map of Ptolemy. Pictland, also known as Pictavia, became the Kingdom of Alba during the 10th century and the Picts became the Fir Alban, the men of Scotland.
The name by which the Picts called themselves is unknown. The Greek word Πικτοί (Latin Picti) first appears in a panegyric written by Eumenius in AD 297 and is taken to mean "painted or tattooed people" (Latin pingere "paint"). The Gaels of Ireland and Dál Riata called the Picts Cruithne, (Old Irish cru(i)then-túath), presumably from Proto-Celtic *kwriteno-toutā. There were also people referred to as Cruithne in Ulster, in particular the kings of Dál nAraidi. The Britons (later the Welsh and Cornish) in the south knew them, in the P-Celtic form of "Cruithne", as Prydyn; the terms "Britain" and "Briton" come from the same root. Their Old English name gave the modern Lowland Scots form Pechts.
Archaeology gives some impression of the society of the Picts. Although very little in the way of Pictish writing has survived, Pictish history, from the late 6th century onwards, is known from a variety of sources, including saints' lives, such as that of Columba by Adomnán, and various Irish annals. Although the popular impression of the Picts may be one of an obscure, mysterious people, this is far from being the case. When compared with the generality of Northern, Central and Eastern Europe in Late Antiquity and the Early Middle Ages, Pictish history and society are well attested.