Not only did Sahaidachny fight for control, he also fought for the religious and cultural rights of the Ukrainian people. In 1620, he registered himself and his entire Zaporozhian Host as students into the Kyiv Epiphany Brotherhood School, that preceded the current Kyiv Mohyla Academy. It was done in order to protect the school from conversion from an Orthodox school into a Roman Catholic Jesuit Collegium. He also contributed to the establishment of a cultural center in Kyiv and sought to unite the Cossack military with the Ukrainian clergy and nobility.