Ivan Fyodorov or Ivan Fеdorov sometimes transliterated as Fiodorov, was one of the fathers of Eastern Slavonic printing, he was the first known Russian printer in Moscow and the Polish–Lithuanian Commonwealth, he was also a skilled cannon maker and the inventor of a multibarreled mortar.

Francysk Skaryna was a Belarusian humanist, physician, and translator. He is known to be one of the first book printers in the Grand Duchy of Lithuania and in all of Eastern Europe, laying the groundwork for the development of the Belarusian izvod of the Church Slavonic language.