9 April 1241 April 9, 2015 Author: Staff The Battle of Liegnitz. The Mongol forces defeat the Polish and German armies. Famous Words of Inspiration..."He that would live in peace and at ease must not speak all he knows or all he sees." Benjamin Franklin — Click here for more from Benjamin Franklin Related posts: 9 April 2011 9 April 1957 1 April 1865 14 April 1205 1 April 1865 8 April 876 Categories: History Tags: 1241, 9 April