Old English corpus of runic inscriptions from the 5th to 7th centuries, but the oldest coherent runic texts (notably the Franks Casket) date to the 8th century. The Old English Latin alphabet was introduced around the 9th century. With the unification of the Anglo-Saxon kingdoms (outside the Danelaw) by Alfred the Great in the later 9th century, the language of government and literature became standardised around the West Saxon dialect (Early West Saxon). Alfred advocated education in English alongside Latin, and had many works translated into the English language; some of them, such as Pope Gregory I's treatise "Pastoral Care", appear to
Proto-Germanic language of Proto-Indo-European and its gradual divergence into a separate language. As it is probable that the development of this sound shift spanned a considerable time (several centuries), Proto-Germanic cannot adequately be reconstructed as a simple node in a tree model but rather represents a phase of development that may span close to a thousand years. The end of the Common Germanic period is reached with the beginning of the Migration Period in the fourth century. The alternative term "Germanic parent language" may be used to include a larger scope of linguistic developments, spanning the Nordic Bronze Age and Pre-Roman Iron