Jan Hus — Czechoslovakian Philosopher born on December 30, 1369,

Jan Hus, often referred to in English as John Hus or John Huss, was a Czech priest, philosopher, early Christian reformer and Master at Charles University in Prague. After John Wycliffe, the theorist of ecclesiastical Reformation, Hus is considered the first Church reformer, as he lived before Luther, Calvin and Zwingli... (wikipedia)