1098 – Fighters of the First Crusade defeated Kerbogha of Mosull.
1709 – Peter the Great defeated Charles XII of Sweden at the Battle of Poltava.
1914 – Franz Ferdinand, Archduke of Austria and his wife Sophie were assassinated in Sarajevo by Bosnia Serb nationalist Gavrilo Princip. It became the reason for World War I. (World War I Events - Timeline)
1919 – The Treaty of Versailles was signed in Paris, bringing fighting to an end in between Germany and the Allies of World War I.
1926 – Mercedes-Benz was formed by Gottlieb Daimler and Karl Benz merging their two companies.
1942 – World War II: Nazi Germany started its strategic summer offensive against the Soviet Union, codenamed Case Blue
1950 – Korean War: Seoul was captured by North Korean troops.
1996 – The Constitution of Ukraine was signed into law.
2011 - Google+ was launched
2014 - Management Theory Review - my blog on management knowledge facilitating revision of MBA knowledge reached million cumulative page views figure.
Philosopher Jean-Jacques Rousseau (1712-1778) was born in Geneva, Switzerland. His book The Social Contract stated that no laws are binding unless agreed upon by the people, a concept that deeply affected the French.
Birthday - German-American physicist Maria Goeppert Mayer (1906-1972) was born in Kattowitz, Germany. She participated in the secret Manhattan Project, the building of the first atomic bomb. She later became the first American woman to win the Nobel Prize, sharing the 1963 prize for physics for works explaining atomic nuclei, known as the nuclear shell theory.
June Knowledge History - Science, Engineering and Management
World War I Events - Timeline