February 25 events in history

138 The Roman emperor Hadrian adopts Antoninus Pius, effectively making him his successor
493 Odoacer surrenders Ravenna after a 3-year siege and agrees to a mediated peace with Theodoric the Great
628 Khosrau II is overthrown by his son Kavadh II
1336 4,000 defenders of Pilėnai commit mass suicide rather than be taken captive by the Teutonic Knights
1570 Pope Pius V excommunicates Queen Elizabeth I of England
1631 François de Bassompierre, a French courtier, is arrested on Richelieu's orders
1797 Colonel William Tate and his force of 1000-1500 soldiers surrender after the Last invasion of Britain
1821 Greek War of Independence: Alexander Ypsilantis issues a proclamation at Iași, announcing that he had "the support of a great power" (i.e. Russia)
1831 Battle of Olszynka Grochowska, part of Polish November Uprising against Russian Empire
1836 Samuel Colt is granted a United States patent for the Colt revolver
1843 Provisional Cession of the Hawaiian or Sandwich Islands established by Lord George Paulet
1848 Provisional government in revolutionary France, by Louis Blanc's motion, guarantees workers' rights
1856 A Peace conference opens in Paris after the Crimean War
1866 Miners in Calaveras County, California, discover what is now called the Calaveras Skull - human remains that supposedly indicated that man, mastodons, and elephants had co-existed
1870 Hiram Rhodes Revels, a Republican from Mississippi, is sworn into the United States Senate, becoming the first African American ever to sit in the U.S. Congress
1875 Guangxu Emperor of China begins his reign, under Empress Dowager Cixi's regency
1901 J. P. Morgan incorporates the United States Steel Corporation
1912 Marie-Adélaïde, the eldest of six daughters of Guillaume IV, becomes the first reigning Grand Duchess of Luxembourg
1916 World War I: the Germans capture Fort Douaumont during the Battle of Verdun
1919 Oregon places a one cent per U.S. gallon tax on gasoline, becoming the first U.S. state to levy a gasoline tax
1921 Tbilisi, capital of the Democratic Republic of Georgia, is occupied by Bolshevist Russia
1928 Charles Jenkins Laboratories of Washington, D.C. becomes the first holder of a television license from the Federal Radio Commission
1932 Adolf Hitler obtains German citizenship by naturalization, which allows him to run in the 1932 election for Reichspräsident
1933 The USS Ranger is launched. It is the first US Navy ship to be built solely as an aircraft carrier
1941 February Strike: In occupied Amsterdam, a general strike is declared in response to increasing anti-Jewish measures instituted by the Nazis
1945 World War II: Turkey declares war on Germany
1947 The State of Prussia ceases to exist
1948 The Communist Party takes control of government in Czechoslovakia and the period of the Third Republic ends
1951 The first Pan American Games are held in Buenos Aires, Argentina
1954 Gamal Abdel Nasser is made premier of Egypt
1956 In his speech On the Personality Cult and its Consequences, Nikita Khrushchev, leader of the Soviet Union denounces the cult of personality of Joseph Stalin
1964 North Korean Prime Minister Kim Il-sung calls for the removal of feudalistic land ownership aimed at turning all cooperative farms into state-run ones
1964 U.S. Air Force launches a satellite employing a US Air Force Atlas/Agena combination from Point Arguello (LC-2-3) in California and from Cape Kennedy in Florida
1968 Vietnam War: 135 unarmed citizens of Hà My village in South Vietnam's Quảng Nam Province are killed and buried en masse by South Korean troops in what would come to be known as the Hà My massacre
1971 The first unit of the Pickering Nuclear Generating Station, the first commercial nuclear power station in Canada, goes online
1980 The government of Suriname is overthrown by a military coup which is initiated by the bombing of the police station from an army ship off the coast of the nation's capital, Paramaribo
1986 People Power Revolution: President of the Philippines Ferdinand Marcos flees the nation after 20 years of rule; Corazon Aquino becomes the Philippines' first woman president
1987 Southern Methodist University's football program is the first college football program to receive the Death Penalty by the NCAA's Committee on Infractions. It was revealed that athletic officials and school administrators had knowledge of a "slush fund" used to make illegal payments to the school's football players as far back as 1981
1991 Gulf War: An Iraqi scud missile hits an American military barracks in Dhahran, Saudi Arabia killing 28 U.S. Army Reservists from Pennsylvania
1991 The Warsaw Pact is declared disbanded
1992 Khojaly massacre: about 613 civilians are killed by Armenian armed forces during the conflict in the Nagorno-Karabakh region of Azerbaijan
1994 Mosque of Abraham massacre: In the Cave of the Patriarchs in the West Bank city of Hebron, Baruch Goldstein opens fire with an automatic rifle, killing 29 Palestinian worshippers and injuring 125 more before being subdued and beaten to death by survivors
1997 Yi Han-yong, North Korean defector was murdered by unidentified assailants in Bundang, South Korea
2009 Members of the Bangladesh Rifles mutiny at their headquarters in Pilkhana, Dhaka, Bangladesh, resulting in 74 deaths, including more than 50 army officials