Cuman (Kuman) was a Kipchak Turkic language spoken by the Cumans (Polovtsy, Folban, Vallany, Kun) and Kipchaks; the language was similar to the today's various languages of the Kipchak-Cuman branch. The Kipchak language/Cuman is documented in medieval works, including the Codex Cumanicus, and it was a literary language in the Central and Eastern Europe that left a rich literary inheritance. The language became the main language (lingua franca) of the Golden Horde.