On June 15:
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- 1215 - King John of England put his seal to the Magna Carta
- 1389 - In the Battle of Kosovo, Turks defeated Serbs and Bosnians.
- 1904 - The General Slocum burned in New York's East River, over 1,000 died.
- 1911 - The Computing-Tabulating-Recording Company, now known as IBM, was registered in New York.
- 1916 - U.S. President Woodrow Wilson signed a bill which incorporated the Boy Scouts of America.
On June 15:
- 1215 - King John of England put his seal to the Magna Carta
- 1389 - In the Battle of Kosovo, Turks defeated Serbs and Bosnians.
- 1904 - The General Slocum burned in New York's East River, over 1,000 died.
- 1911 - The Computing-Tabulating-Recording Company, now known as IBM, was registered in New York.
- 1916 - U.S. President Woodrow Wilson signed a bill which incorporated the Boy Scouts of America.