June 17

• June 17, 362
  Roman emperor Julian decrees religious toleration in the empire and attempts to reestablish paganism
• June 17, 1397
  The Union of Kalmar, which grows out of the dynastic ties of the Scandinavian countries, unites Denmark, Sweden and Norway under one monarch
• June 17, 1579
  Sir Francis Drake sails into San Francisco Bay and proclaims English sovereignty over New Albion in modern-day California
• June 17, 1696
  John III Sobieski, King of Lithuania and Poland, dies
• June 17, 1767
  English navigator Samuel Wallis becomes the first European to visit Tahiti in existing records
• June 17, 1789
  The Third Estate of the Estates-General in France declare itself a national assembly, and undertake to frame a constitution
• June 17, 1797
  Mohammad Khan Qajar, cruel ruler of Persia, is killed, and his nephew Fath Ali Shah succeeded him
• June 17, 1848
  Austrian General Alfred Windisch-Grätz crushes a Czech uprising in Prague against Habsburg control
• June 17, 1930
  United States President Herbert Hoover signs the Hawley-Smoot Tariff bill, which increases some 900 American import duties, so contributing to the depth of the Depression
• June 17, 1942
  First World War II American expeditionary force lands in Africa
• June 17, 1944
  Republic of Iceland proclaimed at Thingvallir, Iceland
• June 17, 1950
  Julius Rosenberg is arrested in the US on suspicion of espionage, accused of heading a spy ring that passed top-secret information concerning the atomic bomb to the Soviet Union
• June 17, 1967
  China becomes world's fourth thermonuclear power
• June 17, 1972
  Five men are arrested for breaking and entering into the DNC headquarters at the Watergate complex, beginning the Watergate scandal

June 6

• June 6, 1002
  German king Henry II is crowned by Archbishop of Mainz at Mainz, the first time when a German king was crowned outside Aachen Cathedral since Emperor Otto I
• June 6, 1134
  Norbert of Xanten, founder of the Premonstratensian order, dies
• June 6, 1523
  Sweden gains independence from the Kalmar Union and a member of noble family Gustav Vasa is elected Gustavus I of Sweden
• June 6, 1674
  Shivaji, an aristocrat of the clan within the Maratha Kshatriya culture, crowns himself King of India, founding Maratha Empire in Indian subcontinent
• June 6, 1683
  The Ashmolean Museum, the world's first university museum, is opened in Oxford to house natural-history artifacts given to Oxford University by Elias Ashmole
• June 6, 1698
  Streltsy, the Russian regiments, remove their commanding officers and make their way to Moscow, beginning Streltsy Uprising against military service hardships and harassment
• June 6, 1719
  The first slaves, over five hundred black slaves coming from Africa, arrive in Louisiana on two French ships, the Du Maine and the Aurore arrive in Louisiana, starting expansion of slavery
• June 6, 1772
  Haitian explorer Jean Baptiste-Pointe DuSable settles Chicago
• June 6, 1809
  Sweden establish new constitution, which establishes a separation of powers between the King and the legislative branch, the Riksdag of the Estates
• June 6, 1844
  YMCA, the Young Men's Christian Association, is founded in London, England
• June 6, 1882
  An electric iron, weighed almost 7 kilograms, is patented by Henry W. Seely in New York City
• June 6, 1918
  Battle of Belleau Wood becomes the first United States victory of the First World War
• June 6, 1925
  Walter Percy Chrysler founds the Chrysler Corporation
• June 6, 1944
  About 155,000 Allied troops land 90 km of Normandy coastline in France during the D-Day, beginning the invasion of German-occupied western Europe
• June 6, 1946
  National Basketball Association, the premier men's professional basketball league in the world, is founded
• June 6, 1967
  Six-day war between Israel and Arab neighbors begins
• June 6, 1984
  Indian troops storm the Golden Temple at Amritsar, the Sikhs' holiest shrine, killing an estimated 2000 people
• June 6, 1993
  Mongolia holds its first direct presidential elections
• June 6, 2002
  An asteroid or comet estimated at 5-10 metres in diameter explodes over the Mediterranean Sea between Greece and Libya with an estimated force slightly more powerful than the Nagasaki atomic bomb
• June 6, 2013
  American Edward Snowden releases classified documents concerning mass surveillance by a U.S. government and flees the country, later being granted temporary asylum in Russia