There are two representatives of the Czech Reformation who are well known: John Hus its inaugurator, and John Amos Comenius, the spiritual leader of its last generation. A long period of two hundred years lay between the martyr death of John Hus in Constance in 1415 and the appearance of Comenius on the stage of history. Those two centuries have been, of course, studied by Czech historians and much concerning them has been written also in German, French, and English. Church history has attracted foreign scholars more than the political or economic development of the lands of the Bohemian crown. And yet, much is to be done even on this subject, many problems are to be elucidated and explained. Hus and Comenius overshadowed by their fame and renown many of their forerunners or followers.