Year 503 Calendar » According to the Fasti Triumphales, Roman consul Publius Postumius Tubertus celebrated an ovation for a military victory over the Sabines.
Year 1043 Calendar » Edward the Confessor is crowned List of English monarchs or King of England.
Year 1559 Calendar » The Peace of Cateau-Cambrésis treaty is signed, ending the Italian Wars.
Year 1834 Calendar » The generals in the Greek War of Independence stand trial for treason.
Year 1860 Calendar » The first successful United States Pony Express run from Saint Joseph, Missouri, to Sacramento, California, begins.
Year 1865 Calendar » American Civil War: Union (American Civil War) or Union forces capture Richmond, Virginia, the capital of the Confederate States of America.
Year 1882 Calendar » American Old West: Jesse James is killed by Robert Ford (outlaw) named Robert Ford.
Year 1885 Calendar » Gottlieb Daimler is granted a Germany e.g German patent for his engine design.
Year 1888 Calendar » The first of eleven Whitechapel murders or unsolved brutal murders of women committed in or near the impoverished Whitechapel district in the East End of London, occurs.
Year 1895 Calendar » The trial in the libel case brought by Oscar Wilde begins, eventually resulting in his imprisonment on charges of homosexuality.
Year 1922 Calendar » Joseph Stalin becomes the first General Secretary of the Communist Party of the Soviet Union.
Year 1929 Calendar » RMS or Queen Mary is ordered from John Brown & Company Shipbuilding and Engineering by Cunard Line.
Year 1933 Calendar » First flight over Mount Everest, a British expedition, led by the Douglas Douglas-Hamilton, 14th Duke of Hamilton called Marquis of Clydesdale, and funded by Lucy, Lady Houston.
Year 1936 Calendar » Bruno Richard Hauptmann is executed for the kidnapping and death of Lindbergh kidnapping or Charles Augustus Lindbergh, Jr., the baby son of pilot Charles Lindbergh.
Year 1942 Calendar » World War II: Japanese forces begin an assault on the United States and Philippines or Filipino troops on the Battle of Bataan known as Bataan Peninsula.
Year 1946 Calendar » Japanese Lt. General Masaharu Homma is executed in the Philippines for leading the Bataan Death March.
Year 1948 Calendar » In Jeju-do e.g Jeju, South Korea, a civil-war-like period of violence and human rights abuses begins, known as the Jeju massacre.
Year 1948 » President of the United States or President Harry S. Truman signs the Marshall Plan, authorizing $5 billion in aid for 16 countries.
Year 1956 Calendar » Hudsonville-Standale Tornado of April 1956 named Hudsonville-Standale Tornado: The western half of the Lower Peninsula of Michigan is struck by a deadly Fujita scale e.g F5 tornado.
Year 1969 Calendar » Vietnam War: United States Secretary of Defense Melvin Laird announces that the United States will start to "Vietnamization known as Vietnamize" the war effort.
Year 1973 Calendar » Martin Cooper (inventor) called Martin Cooper of Motorola makes the History of mobile phones called first handheld mobile phone call to Joel S. Engel of Bell Labs, though it took ten years for the DynaTAC 8000X to become the first such phone to be commerc
Year 1974 Calendar » Super Outbreak called The Super Outbreak occurs, the second biggest tornado outbreak in recorded history (after the April 25–28, 2011 tornado outbreak). The death toll is 315, with nearly 5,500 injured.
Year 1975 Calendar » Bobby Fischer refuses to play in a chess match against Anatoly Karpov, giving Karpov the title of World Champion by default.
Year 1981 Calendar » The Osborne 1, the first successful portable computer, is unveiled at the West Coast Computer Faire in San Francisco.
Year 1996 Calendar » A United States Air Force airplane carrying United States Secretary of Commerce Ron Brown (U.S. politician) e.g Ron Brown 1996 Croatia USAF CT-43 crash e.g crashes in Croatia, killing all 35 on board.
Year 1996 » Suspected "Unabomber" Theodore Kaczynski is captured at his cabin in Montana, United States.
Year 1997 Calendar » The Thalit massacre begins in Algeria; all but one of the 53 inhabitants of Thalit are killed by guerrillas.
Year 2000 Calendar » 'United States v. Microsoft': Microsoft is ruled to have violated United States antitrust laws by keeping "an oppressive thumb" on its competitors.
Year 2004 Calendar » Islamic terrorists involved in the 11 March 2004 Madrid attacks are trapped by the police in their apartment and kill themselves.
Year 2007 Calendar » TGV world speed record Record of 2007 named Conventional-Train World Speed Record: a French TGV train on the LGV Est high speed line sets an official new world speed record.
Year 2008 Calendar » ATA Airlines, once one of the ten largest U.S. passenger airlines and largest charter airline, files for bankruptcy for the second time in five years and ceases all operations.
Year 2009 Calendar » Binghamton shootings: Jiverly Antares Wong opens fire at an American Civic Association immigration center in Binghamton, New York or NY, killing 13 and wounding 4 others before Wong took his own life.
Year 2013 Calendar » More than 50 people die in 2013 Argentina floods or floods resulting from record-breaking rainfall in La Plata and Buenos Aires, Argentina.