Old Celtic refers to the early forms of the Celtic languages spoken in ancient Europe, particularly in regions like Britain, Ireland, and Gaul. These languages are part of the larger Indo-European language family and include early versions of Gaelic and Brythonic. Old Celtic was primarily oral, with written records appearing later, mainly in inscriptions and manuscripts. The Old Celtic period is significant for understanding the cultural and linguistic development of the Celtic peoples. It reflects their migration patterns, social structures, and interactions with neighboring cultures, such as the Romans and Germans. The study of Old Celtic helps linguists trace the evolution of modern Celtic languages.