On June 27:
1358 Republic of Dubrovnik was founded.
1709 Peter the Great defeated Charles XII of Sweden at the Battle of Poltava.
1743 War of the Austrian Succession: Battle of Dettingen: On the battlefield in Bavaria, George II personally led troops into battle. The last time that a British monarch would command troops in the field.
1759 General James Wolfe began the siege of Quebec.
1838 Paul von Mauser, German weapon designer, was born (d. 1914)
1844 Joseph Smith, Jr., founder of the Church of Jesus Christ of Latter-day Saints, and his brother Hyrum Smith, were murdered by a mob at the Carthage, Illinois jail.
1846 Charles Stewart Parnell, Irish independence fighter, was born (d. 1891).
1850 Jørgen Pedersen Gram, Danish mathematician, was born (d. 1919).
1865 Sir John Monash, Australian military commander, was born (d. 1931).
1869 Emma Goldman, Lithuanian/American anarchist and feminist, was born (d. 1940).
1880 Helen Keller, American deaf and blind activist, was born (d. 1968).
1895 The inaugural run of the Baltimore and Ohio Railroad’s Royal Blue from Washington, D.C., to New York City, the first U.S. passenger train to use electric locomotives.
1898 The first solo circumnavigation of the globe was completed by Joshua Slocum.
1905 (June 14 according to the Julian calendar): Battleship Potemkin uprising: sailors started a mutiny aboard the Battleship Potemkin, denouncing the crimes of autocracy, demanding liberty and an end to war.
1923 Capt. Lowell H. Smith and Lt. John P. Richter performed the first ever aerial refueling in a DH-4B biplane.
1941 Romanian governmental forces, allies of Nazi Germany, launched one of the most violent pogroms in Jewish history in the city of Iaşi, resulting in the murder of at least 13,266 Jews.
1941 German troops captured the city of Białystok during Operation Barbarossa.
1942 Bruce Johnston, American musician (The Beach Boys).
1950 The United States decided to send troops to fight in the Korean War.
1951 Mary McAleese, President of Ireland, was born.
1954 The world’s first nuclear power station opened in Obninsk, near Moscow.
1967 The world’s first ATM was installed in Enfield, London.
1970 John Eales, Australian Rugby Player, was born.
1973 The President of Uruguay, Juan María Bordaberry, dissolved Parliament and headed a coup d’état.
1974 U.S president Richard Nixon visited the U.S.S.R..
1975 Mark Williams reached No 1 with Yesterday Was Just The Beginning of My Life.
1977 France granted independence to Djibouti.
1989 The current international treaty defending indigenous peoples, ILO 169 convention, was adopted.
1991 Slovenia was invaded by Yugoslav troops, tanks, and aircraft, starting the Ten-Day War.
2007 The Brazilian Military Police invaded the favelas (slums)of Complexo do Alemão in an episode which is remembered as the Complexo do Alemão massacre.
Sourced from NZ HIstory Online & Wikipedia