The events happened on 15th June are :
1215 : Magna Carta sealed by King John : Magna Carta—a charter of English liberties that occupies a unique place in the popular imagination as a symbol and a battle cry against oppression—was sealed this day, under threat of civil war, by King John in 1215.
1944 : During World War II, U.S. Marines attacked Saipan in the Mariana Islands.
1903 : American automobile-racing driver Barney Oldfield accomplished the first mile-a-minute performance in a car at Indianapolis, Indiana.
1861 : Austrian contralto Ernestine Schumann-Heink, one of the principal interpreters of the operas of Richard Wagner and Richard Strauss before the outbreak of World War I, was born.
1846 : The United States and Britain signed the Oregon Treaty, establishing the border between Canada and the United States at latitude 49° N.
1844 : Charles Goodyear received a patent for the process of rubber vulcanization.
1775 : George Washington was named commander in chief of the colonies by the Continental Congress.
1752 : Benjamin Franklin flew a kite during a storm in Philadelphia to demonstrate the relationship between electricity and lightning.
1389 : The Battle of Kosovo, fought between the armies of the Serbian prince Lazar and the forces of the Ottoman sultan Murad I, concluded with an Ottoman victory.
14th June | 16th June