Hypatian Codex
The Galician–Volhynian Chronicle () is a prominent benchmark of the Old Ruthenian literature and historiography covering 1201–1292 in the history of the Principality of Galicia-Volhynia (in modern Ukraine). The original chronicle did not survive; the oldest known copy is in the "Hypatian Codex". It was discovered in 1809 by the Russian historian and opinion writer Nikolay Karamzin as a final part of the 15th century Hypatian Codex. He also found the second codex of the Galician–Volhynian Chronicle, the 16th century Khlebnikovsky Codex (which is considered the principle one). All other known today to science six codices of the Galician–Volhynian Chronicle including the Hypatian Codex start from the Khlebnikovsky Codex.