On October 16.1841 ; 1843 ; Sir William Rowan Hamilton comes up with the idea of quaternions, a non-commutative extension of complex numbers. source
On October 16.1841 ; 1843 ; Sir William Rowan Hamilton comes up with the idea of quaternions, a non-commutative extension of complex numbers.
On October 16.1944 ; Wally Walrus, Woody Woodpecker's first steady foil, debuts in the The Beach Nut, a Walter Lantz's cartoon. source
On October 16.1944 ; Wally Walrus, Woody Woodpecker's first steady foil, debuts in the The Beach Nut, a Walter Lantz's cartoon.
On October 16.1964 ; China detonates its first nuclear weapon. source
On October 16.1964 ; China detonates its first nuclear weapon.
On October 17.1827 ; Bellini's third opera, Il pirata, is premiered at Teatro alla Scala di Milano source
On October 17.1827 ; Bellini's third opera, Il pirata, is premiered at Teatro alla Scala di Milano
On October 18.1945 ; The USSR's nuclear program receives plans for the United States plutonium bomb from Klaus Fuchs at the Los Alamos National Laboratory. source
On October 18.1945 ; The USSR's nuclear program receives plans for the United States plutonium bomb from Klaus Fuchs at the Los Alamos National Laboratory.
On October 18.2004 ; Myanmar prime minister Khin Nyunt is ousted and placed under house arrest by the State Peace and Development Council on charges of corruption. source
On October 18.2004 ; Myanmar prime minister Khin Nyunt is ousted and placed under house arrest by the State Peace and Development Council on charges of corruption.
On October 19.1822 ; In Parnaíba; Simplício Dias da Silva, João Cândido de Deus e Silva and Domingos Dias declare the independent state of Piauí. source
On October 19.1822 ; In Parnaíba; Simplício Dias da Silva, João Cândido de Deus e Silva and Domingos Dias declare the independent state of Piauí.
On October 19.1864 ; St. Albans Raid: Confederate raiders launch an attack on Saint Albans, Vermont from Canada. source
On October 19.1864 ; St. Albans Raid: Confederate raiders launch an attack on Saint Albans, Vermont from Canada.
On October 19.1900 ; Max Planck discovers the law of black-body radiation (Planck's law). source
On October 19.1900 ; Max Planck discovers the law of black-body radiation (Planck's law).
On October 19.2007 ; Philippines: A bomb explosion rocks Glorietta 2, a shopping mall in Makati. The blast kills 11 and injures more than 100 people. source
On October 19.2007 ; Philippines: A bomb explosion rocks Glorietta 2, a shopping mall in Makati. The blast kills 11 and injures more than 100 people.
On October 20.1781 ; The Patent of Toleration, providing limited freedom of worship, is approved in Habsburg Monarchy. source
On October 20.1781 ; The Patent of Toleration, providing limited freedom of worship, is approved in Habsburg Monarchy.
On October 20.1827 ; In the Battle of Navarino, a combined Turkish and Egyptian fleet is defeated by British, French, and Russian naval forces in the last significant battle fought with wooden sailing ships. source
On October 20.1827 ; In the Battle of Navarino, a combined Turkish and Egyptian fleet is defeated by British, French, and Russian naval forces in the last significant battle fought with wooden sailing ships.
On October 20.1944 ; Liquefied natural gas leaks from storage tanks in Cleveland and then explodes; the explosion and resulting fire level 30 blocks and kill 130. source
On October 20.1944 ; Liquefied natural gas leaks from storage tanks in Cleveland and then explodes; the explosion and resulting fire level 30 blocks and kill 130.
On October 20.1946 ; Government of the Democratic Republic of Vietnam decides that October 20 is Vietnam Women's Day. source
On October 20.1946 ; Government of the Democratic Republic of Vietnam decides that October 20 is Vietnam Women's Day.
On October 20.1991 ; A 6.8 Mw earthquake strikes the Uttarkashi region of India, killing more than 1,000 people. source
On October 20.1991 ; A 6.8 Mw earthquake strikes the Uttarkashi region of India, killing more than 1,000 people.
On October 21.1774 ; First display of the word "Liberty" on a flag, raised by colonists in Taunton, Massachusetts in defiance of British rule in Colonial America. source
On October 21.1774 ; First display of the word "Liberty" on a flag, raised by colonists in Taunton, Massachusetts in defiance of British rule in Colonial America.
On October 21.1797 ; In Boston Harbor, the 44-gun United States Navy frigate USS Constitution is launched. source
On October 21.1797 ; In Boston Harbor, the 44-gun United States Navy frigate USS Constitution is launched.
On October 21.1816 ; The Penang Free School is founded in George Town, Penang, Malaysia, by the Rev Hutchings, the oldest English-language school in Southeast Asia. source
On October 21.1816 ; The Penang Free School is founded in George Town, Penang, Malaysia, by the Rev Hutchings, the oldest English-language school in Southeast Asia.
On October 21.1888 ; Foundation of the Swiss Social Democratic Party. source
On October 21.1888 ; Foundation of the Swiss Social Democratic Party.
On October 21.1910 ; HMS Niobe arrives in Halifax Harbour to become the first ship of the Royal Canadian Navy. source
On October 21.1910 ; HMS Niobe arrives in Halifax Harbour to become the first ship of the Royal Canadian Navy.
On October 21.1944 ; World War II: The first kamikaze attack. A Japanese fighter plane carrying a 200-kilogram (440 lb) bomb attacks HMAS Australia off Leyte Island, as the Battle of Leyte Gulf began. source
On October 21.1944 ; World War II: The first kamikaze attack. A Japanese fighter plane carrying a 200-kilogram (440 lb) bomb attacks HMAS Australia off Leyte Island, as the Battle of Leyte Gulf began.
On October 21.1987 ; Jaffna hospital massacre is carried out by Indian Peace Keeping Force in Sri Lanka killing 70 ethnic Tamil patients, doctors and nurses. source
On October 21.1987 ; Jaffna hospital massacre is carried out by Indian Peace Keeping Force in Sri Lanka killing 70 ethnic Tamil patients, doctors and nurses.
On October 22.1877 ; The Blantyre mining disaster in Scotland kills 207 miners. source
On October 22.1877 ; The Blantyre mining disaster in Scotland kills 207 miners.
On October 23.1642 ; Battle of Edgehill: First major battle of the First English Civil War. source
On October 23.1642 ; Battle of Edgehill: First major battle of the First English Civil War.
On October 23.1917 ; Lenin calls for the October Revolution. source
On October 23.1917 ; Lenin calls for the October Revolution.
On October 23.1939 ; The Japanese Mitsubishi G4M twin-engine "Betty" Bomber makes its maiden flight. source
On October 23.1939 ; The Japanese Mitsubishi G4M twin-engine "Betty" Bomber makes its maiden flight.
On October 23.2004 ; A powerful earthquake and its aftershocks hit Niigata Prefecture in northern Japan, killing 35 people, injuring 2,200, and leaving 85,000 homeless or evacuated. source
On October 23.2004 ; A powerful earthquake and its aftershocks hit Niigata Prefecture in northern Japan, killing 35 people, injuring 2,200, and leaving 85,000 homeless or evacuated.
On October 24.1917 ; Bolshevik Red Guards began takeover of buildings in Russia, among the first events associated with the October Revolution. source
On October 24.1917 ; Bolshevik Red Guards began takeover of buildings in Russia, among the first events associated with the October Revolution.
On October 25.1747 ; British fleet under Admiral Sir Edward Hawke defeats the French at the Second Battle of Cape Finisterre. source
On October 25.1747 ; British fleet under Admiral Sir Edward Hawke defeats the French at the Second Battle of Cape Finisterre.
On October 25.1927 ; The Italian luxury liner SS Principessa Mafalda sinks off the coast of Brazil, killing 314. source
On October 25.1927 ; The Italian luxury liner SS Principessa Mafalda sinks off the coast of Brazil, killing 314.
