Seikilos epitaph
The Seikilos epitaph is the oldest surviving complete musical composition, including musical notation, from anywhere in the world. The epitaph has been variously dated, but seems to be either from the 1st or the 2nd century AD. The song, the melody of which is recorded, alongside its lyrics, in the ancient Greek musical notation, was found engraved on a tombstone (a stele) from the Hellenistic town Tralles near present-day Aydın, Turkey, not far from Ephesus. It is a Hellenistic Ionic song in either the Phrygian octave species or Iastian tonos. While older music with notation exists (for example the Hurrian songs), all of it is in fragments; the Seikilos epitaph is unique in that it is a complete, though short, composition.
List of languages by first written accounts
A written record may encode a stage of a language corresponding to an earlier time, either as a result of oral tradition, or because the earliest source is a copy of an older manuscript that was lost. An oral tradition of epic poetry may typically bridge a few centuries, and in rare cases, over a millennium. An extreme case is the Vedic Sanskrit of the "Rigveda": the earliest parts of this text may date to 1500 BC, while the oldest known manuscripts date to 1040 AD.
Similarly the oldest Avestan texts, the "Gathas", are believed to have been composed before 1000 BC, but the oldest Avestan manuscripts date from the 13th century AD.