Gothic language
The Ostrogoths in Italy used a Gothic language which had both spoken and written forms, and which is best attested today in the surviving translation of the Bible by Ulfilas. Goths were a minority in all the places they lived within the Roman empire, and no Gothic language or distinct Gothic ethnicity has survived. On the other hand, the Gothic language texts which the Ostrogothic kingdom helped preserve are the only eastern Germanic language with "continuous texts" surviving, and the earliest significant remnants of any Germanic language.