15 June 1389 June 14, 2014 Author: Staff The Battle of Kosovo. The Ottoman Empire defeats Serbs and Bosnians. Famous Words of Inspiration..."The only defensible war is a war of defense." GK Chesterton — Click here for more from GK Chesterton Related posts: 15 June 1389 24 December 1974 16 June 2010 15 June 1752 23 June 1314 10 June 1965 11 June 1938 27 June 1709 3 June 1940 21 June 1798 Categories: History Tags: 1389, 15 June