The document summarizes the origins and development of the English language in Europe. It discusses how [1] Celtic, Latin, and Germanic language groups influenced the linguistic geography of Europe, with Celtic speakers in Britain and Ireland, Latin spreading through the Roman Empire, and Germanic dialects developing in Scandinavia. It then [2] examines how language contact between migrating tribes led to changes, such as Germanic tribes adopting Latin in Roman territory. Finally, it [3] traces the development of early English dialects in Britain from Old English to the introduction of writing through Christianity.