June 29

• June 29, 69
  Saint Peter, an early Christian leader and one of the Twelve Apostles of Jesus Christ, is crucified upside down at his own request, since he saw himself unworthy to be crucified in the same way as Jesus Christ, according to Christian tradition
• June 29, 1236
  Ferdinand III of Castile conquers Cordoba, the old Umayyad capital in Spain
• June 29, 1440
  Italian League led by the Republic of Florence beat the Milanese in the Battle of Anghiari
• June 29, 1504
  Diego Mendez, one of Columbus's captains, returned to Jamaica with a small caravel and rescued the Columbus expedition, that stumbled across the Cayman Islands
• June 29, 1541
  The Spanish explorer Francisco Vásquez de Coronado reaches Kansas during the exploration of American southwest
• June 29, 1767
  The British Parliament approved the Townshend Revenue Acts, sponsored by statesman Charles Townshend, which imposed import duties on glass, lead, paint, paper and tea shipped to America
• June 29, 1858
  China cedes north bank of Amur River to Russia by Treaty of Aigun
• June 29, 1880
  The new king of Tahiti, pushed by the governor Henri Isidore Chessé, abdicate in favor of France
• June 29, 1881
  Muhammad Ahmad, a religious leader of the Samaniyya order, proclaims himself as the Mahdi or messianic redeemer of the Islamic faith in Sudan and leads a successful military campaign against the Turco-Egyptian government of the Sudan
• June 29, 1888
  Professor Frederick Treves performs the first appendectomy, the surgical removal of the vermiform appendix, in England
• June 29, 1913
  Second Balkan War begins, when Bulgaria, dissatisfied with its share of the spoils of the First Balkan War, attacks its former allies, Serbia and Greece
• June 29, 1916
  Boeing Model 1, the first Boeing aircraft, flies for first time
• June 29, 1921
  Adolf Hitler becomes Führer of the National Socialist German Workers' Party, commonly called Nazi Party, as hyperinflation in the Weimar Republic begins