Joachim Chreptowicz was an activist of what educational authority in the Polish-Lithuanian commonwealth?
Commission of National Education: The Commission of National Education (Polish: "Komisja Edukacji Narodowej" , abbreviated KEN, Lithuanian: "Edukacinė komisija" , Belarusian: Адукацыйная камісія ) was the central educational authority in the Polish–Lithuanian Commonwealth, created by the Sejm and the King Stanisław August Poniatowski on October 14, 1773.
i don't know