History of the Welsh language

The history of the Welsh language (Welsh: hanes yr iaith Gymraeg) spans over 1400 years, encompassing the stages of the language known as Primitive Welsh, Old Welsh, Middle Welsh, and Modern Welsh. == Origins == Welsh evolved from British (Common Brittonic), the Celtic language spoken by the ancient Britons.

Source: Wikipedia — History of the Welsh language (CC BY-SA 4.0)