[1] The script is named after the Orkhon Valley in Mongolia where early 8th-century inscriptions were discovered in an 1889 expedition by Nikolai Yadrintsev.

The texts are mostly epitaphs (official or private), but there are also graffiti and a handful of short inscriptions found on archaeological artifacts, including a number of bronze mirrors.

The most famous of the inscriptions are the two monuments (obelisks) which were erected in the Orkhon Valley between 732 and 735 in honor of the Göktürk prince Kül Tigin and his brother the emperor Bilge Kağan.

These inscriptions relate in epic language the legendary origins of the Turks, the golden age of their history, their subjugation by the Chinese (Tang-Gokturk wars), and their liberation by Bilge.

In these cases, it is customary to use superscript numerals ¹ and ² to mark consonant signs used with back and front vowels, respectively.

[20] A reading example (right to left): 𐱅𐰭𐰼𐰃 transliterated t²ñr²i, this spells the name of the Turkic sky god, Täñri (/tæŋri/).

𐰖𐰕𐰸𐰞𐱃----: 𐰋𐰃𐰼𐰘𐰀: 𐱃𐰉𐰍𐰲𐰑𐰀: 𐱃𐰃: 𐰚𐰇𐰾𐰃: 𐰖𐰸: 𐰉𐰆𐰡𐰃: 𐰉𐰆: 𐰘𐰼𐰓𐰀: 𐰢𐰭𐰀: 𐰴𐰆𐰺: 𐰉𐰆𐰡𐰃: 𐰢𐰤: 𐰇𐰕𐰢: 𐰴𐰍𐰣: 𐰆𐰞𐰺𐱃𐰸𐰢: 𐰇𐰲𐰤: 𐱅𐰇𐰼𐰰: 𐰉𐰆𐰑𐰣𐰍: ----𐰇----: 𐰴𐰞𐰢𐰑𐰢: 𐰃𐰠𐰏: 𐱅𐰇𐰼𐰇𐰏: 𐰘𐰏𐰓𐰃: 𐰴𐰕𐰍𐰦𐰢: 𐰃𐰑----: ----𐱅𐰃𐰼𐰠𐰯: 𐰘----:‎ 𐰦𐰀: 𐰾𐰇𐰤𐱁𐰓𐰢: 𐰾𐰇𐰾𐰃𐰤: 𐰽𐰨𐰑𐰢: 𐰃𐰲𐰚𐰏𐰢𐰀: 𐰱𐰚𐰓𐰃: 𐰉𐰆𐰑𐰣: 𐰉𐰆𐰡𐰃: 𐰇𐰠𐰏𐰢𐰀: 𐰇𐰠𐱅𐰃: 𐰾𐰠𐰭𐰀: 𐰸𐰆𐰑𐰃: 𐰖𐰆𐰺𐰯𐰣: 𐰴𐰺𐰍𐰣: 𐰶𐰃𐰽𐰞𐱃𐰀: 𐰋𐰃𐰤: 𐰉𐰺𐰴𐰃𐰤: 𐰦𐰀: 𐰉𐰆𐰕𐰑𐰢: ----: 𐰘𐱁𐰴𐰀: 𐰍𐰑𐰃: 𐰆𐰖𐰍𐰺: 𐰠𐱅𐰋𐰼: 𐰘𐰇𐰕𐰲𐰀: 𐰼𐰏: 𐰃𐰠𐰏𐰼𐰇: 𐱅𐰕𐰯: 𐰉𐰺𐰑𐰃: ----:‎ 𐱅𐰃: 𐱅𐰇𐰼𐰰: 𐰉𐰆𐰑𐰣: 𐰀𐰲: 𐰼𐱅𐰃: 𐰆𐰞: 𐰘𐰃𐰞𐰴𐰃𐰍: 𐰞𐰯: 𐰃𐰏𐱅𐰢: 𐰆𐱃𐰕: 𐰺𐱃𐰸𐰃: 𐱅𐰇𐰼𐱅: 𐰖𐱁𐰢𐰀: 𐰆𐰍𐰕: 𐱅𐰕𐰯: 𐱃𐰉𐰍𐰲𐰴𐰀: 𐰚𐰃𐰼𐱅𐰃: 𐰇𐰚𐰤𐰯: 𐰾𐰇𐰠𐰓𐰢: 𐰽𐰆𐰴𐰣: ----: 𐰆𐰍𐰞𐰃𐰤: 𐰖𐰆𐱃𐰕𐰃𐰤: 𐰦𐰀: 𐰞𐱃𐰢: 𐰚𐰃: 𐰠𐱅𐰋𐰼𐰠𐰏: 𐰉𐰆𐰑𐰣:‎ The Unicode block for Old Turkic is U+10C00–U+10C4F.