April 7

• April 7, 1348
  Prague University, also known as Charles University, is formed by the King of Bohemia Charles IV and becomes the first university in central Europe and north of Italy
• April 7, 1604
  Four ships depart France under commands of Sieur de Monts, Jean de Poutrincourt, and Samuel de Champlain, under commission from King Henry IV, to colonize the new world, search for gold and silver, and grant land
• April 7, 1655
  Fabio Chigi replaces Pope Innocent X as Alexander VII
• April 7, 1712
  The New York Slave Revolt, an uprising in New York City of 23 enslaved Africans who killed nine whites, is suppressed by the militia and ended with the execution of 21 blacks
• April 7, 1724
  Johann Sebastian Bach's "St John Passion" premieres in Leipzig
• April 7, 1794
  In Poland at the battle of Raclawice the revolutionary forces of Tadeusz Kosciusko defeat the imperial armies
• April 7, 1798
  Territory of Mississippi is organized from territory ceded by Georgia and South Carolina
• April 7, 1803
  Toussaint Louverture, Haitian revolutionary, dies in a dungeon at Fort Joux in the French Alps
• April 7, 1827
  English chemist John Walker invents friction matches
• April 7, 1831
  Pedro I of Brazil abdicates in favor of his 5-year-old son, Pedro de Alcantara, Pedro II
• April 7, 1853
  Doctor John Snow administers chloroform to Queen Victoria at the birth of her 8th child, Prince Leopold
• April 7, 1862
  Union forces led by General Ulysses S. Grant defeat the Confederates at the battle of Shiloh in Tennessee, one of the bloodiest battle in United States history
• April 7, 1939
  Italian forces invade Albania, establishing a protectorate of the Kingdom of Italy
• April 7, 1946
  Part of East Prussia is incorporated into Russian SFSR
• April 7, 1948
  World Health Organization established by United Nations
• April 7, 1953
  Dag Hammarskjold of Sweden elected second United Nations Secretary-General
• April 7, 1954
  United States President Dwight Eisenhower fears "domino-effect" in Indochina, stating that if one state in a region came under the influence of communism, then the surrounding countries would follow
• April 7, 1964
  IBM introduces the IBM System/360 mainframe computer, a system with clear distinction between architecture and implementation, which allows IBM to release a suite of compatible designs at different prices
• April 7, 1978
  U.S. President Jimmy Carter decides to postpone production of the neutron bomb, a weapon which kills people with radiation but leaves buildings relatively intact
• April 7, 1991
  Compton Gamma Ray Observatory, a space observatory detecting light from 20 keV to 30 GeV in Earth orbit, orbits Earth
• April 7, 2010
  Kyrgyzstan President Kurmanbek Bakiyev flees the capital as opposition Social-Democratic Party leaders announce that they have formed a new acting government after anti-government demonstrations in Bishkek leaving 87 dead, 500 injured