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Euthymian recension

In the early 1370s, Bulgarian Patriarch Euthymius of Tarnovo implemented a reform to standardize Bulgarian orthography. Instead of bringining the language closer to that of commoners, the "Euthymian", or Tarnovo, recension, rather sought to re-establish older Old Church Slavonic models, further archaizing it. The fall of Bulgaria under Ottoman rule in 1396 precipitated an exodus of Bulgarian men-of-letters, e.g., Cyprian, Gregory Tsamblak, Constantine of Kostenets, etc. to Wallachia, Moldova and the Grand Duchies of Lithuania and Moscow, where they enforced the Euthymian recension as liturgical and chancery language, and to the Serbian Despotate, where it influenced the Resava School.