Hus's teachings were viewed as heretical by the Roman Catholic Church; they were an important forerunner to the Protestant Reformation.
Citation:
Editors. "Jan Hus begins preaching in Prague".
The Literary Encyclopedia. First published 01 March 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=9610, accessed 26 May 2013.]