June 23

• June 23, 207 BC
  Carthage is defeated by Roman armies led by the consuls Marcus Livius and Gaius Claudius Nero in the Battle of the Metaurus, while Carthaginian general Hasdrubal is killed, which becomes key battle in the Second Punic War
• June 23, 1606
  Treaty of Vienna ends anti-Habsburg uprising in Royal Hungary
• June 23, 1757
  Forces of the East India Company led by Robert Clive defeat Indians in Battle of Plassey marking the beginning of formal British rule in India after years of commercial activity
• June 23, 1758
  British and Hanoverian armies defeat the French at Krefeld in Germany
• June 23, 1775
  First regatta is hold on Thames, England
• June 23, 1845
  The congress of the Republic of Texas vote to accept annexation by the US after 10 years as an independent republic
• June 23, 1848
  A bloody insurrection of workers in Paris, later ruthlessly suppressed by General Cavaignac, erupts to protest inflation, unemployment and corruption
• June 23, 1865
  Confederate General Stand Watie, who was also a Cherokee chief, surrenders the last sizable Confederate army at Fort Towson, in the Oklahoma Territory
• June 23, 1894
  The International Olympic Committee is created by French Baron Pierre de Coubertin with Demetrios Vikelas as its first president
• June 23, 1938
  Marineland, the world's first oceanarium, opens in Florida, United States
• June 23, 1956
  Gamal Abdel Nasser is elected president of Egypt and new constitution of Egypt is accepted at referendum
• June 23, 1960
  Food and Drug Administration, a federal agency of the United States Department of Health and Human Services, approve Enovid, the first combined oral contraceptive pill, for contraceptive use
• June 23, 2010
  Marina Bay Sands, a casino-based vacation resort, is officially opened in Singapore and becomes the 2nd most expensive building in the world