A conspiracy against Piero di Cosimo de Medici in Florence, led by Luca Pitti, is discovered.
Florida discovered, claimed for Spain by Ponce de Leon
Explorer Cabrillo discovered Catalina Island off California coast
Our Lady of Kazan, a holy icon of the Russian Orthodox Church, was discovered underground in the city of Kazan, Tatarstan.
Cape Cod discovered by English navigator Bartholomew Gosnold
Gunpowder Plot; attempt to blow up King James I while he opened Parliament. Plot discovered and Guy Fawkes caught and tortured. He and seven others were later executed
Pro-Charles II plot in England discovered
Pacific Island of New Britain discovered
Anne Bonny and Mary Read are tried, found guilty of pirating, and sentenced to death in Spanish Town, Jamaica, although their discovered pregnancies won them stays of execution
Pitcairn Island is discovered by Midshipman Robert Pitcairn on an expeditionary voyage commanded by Philip Carteret.
The Whirlpool Galaxy was discovered by Charles Messier
Kiritimati, also called Christmas Island, is discovered by James Cook
Nootka Sound, Vancouver Island discovered by Captain Cook
Sir William Herschel sees "comet" (really discovered Uranus)
Titania & Oberon, moons of Uranus, discovered by William Herschel
Aztec calendar stone discovered in Mexico City
Columbia River discovered & named by US Capt Robert Gray
Honolulu Harbor discovered
Wild Boy of Aveyron discovered in southern France
The dwarf planet Ceres is discovered by Giuseppe Piazzi.
Juno, one of the largest main belt asteroids, was discovered by German astronomer Karl Ludwig Harding.
1st natural gas well in US is discovered
The Venus de Milo is discovered on the Aegean island of Melos.
Jarvis Island is discovered by the crew of the ship, Eliza Frances.
Malden Island is discovered.
Mysterious feral child Kaspar Hauser is discovered wandering the streets of Nuremberg.
Source of Mississippi River discovered (Henry R Schoolcraft)
Iron ore discovered in Minnesota's Mesabi Mountains
Neptune's moon Triton discovered by William Lassell
Hyperion, moon of Saturn, discovered by Bond (US) & Lassell (England)
Gold discovered in Oregon (Rogue River)
Yosemite Valley discovered in California
Gold fields discovered in Australia
The McDonald Islands are discovered by Captain William McDonald aboard the Samarang.
The Codex Sinaiticus is discovered in Egypt.
Comstock silver load discovered near Virginia City, Nevada
Comstock Silver Lode in Nevada discovered
Lake Nyasa, which forms Malawi's boundary with Tanzania & Mozambique discovered by British explorer David Livingstone
The Great Comet of 1861 is discovered by John Tebbutt of Windsor, New South Wales, Australia.
The SS Georgiana, said to have been the most powerful Confederate cruiser, is destroyed on her maiden voyage with a cargo of munitions, medicines and merchandise then valued at over $1,000,000. The wreck was discovered on the same day and month, exactly 102 years later by then teenage diver and pioneer underwater archaeologist E. Lee Spence.
Gold is discovered in Helena, Montana
The ship the Mary Celeste discovered mysteriously abandoned by her crew in the Atlantic Ocean
Kirland Warbler discovered on Andros Island in Bahamas
Excelsior diamond (blue-white 995 carats) discovered
Gold first discovered in Klondike, found at Bonanza Creek, Alaska by George Carmack
Phoebe, a moon of Saturn is discovered by Pickering
Oil discovered in Texas
Elara, a satellite of Jupiter, discovered by Charles Dillon Perrine in San Jose, California
Pasiphaë, a satellite of Jupiter, discovered by Melotte
Burgess Shale fossils discovered by Charles Doolittle Walcott.
Pygmies discovered in Dutch New Guinea
Piltdown Man, later discovered to be a hoax, is supposedly found in the Piltdown Gravel Pit, by Charles Dawson.
Oil discovered in Lake of Maracaibo
Irish nationalist activist and poet Roger Casement is discovered at McKenna's Fort and is arrested by the Royal Irish Constabulary
Nova Aquila, brightest nova since Kepler's nova of 1604, discovered
Gold discovered in Johannesburg, South Africa
Giant Panda discovered, China
The positron (antiparticle of the electron) is discovered by Carl D. Anderson.
Polythene discovered by Reginald Gibson & Eric William Fawcett
The erroneous word "Dord" is discovered in the Webster's New International Dictionary, Second Edition, prompting an investigation.
New Quebec (Chubb) Crater discovered in northern Quebec (3½ km dia)
1st "bug" in a computer program discovered by Grace Hopper, a moth was removed with tweasers from a relay & taped into the log
Two new elements discovered by Glenn Seaborg, James, Morgan and Albert Ghiorso were are announced: americium (atomic number 95) and curium (atomic number 96)
Military coup discovered in France
A new range of mountains discovered in Antarctica (2 over 13,000')
US element 103 (Lawrencium) discovered
Civil rights workers Michael Schwerner, Andrew Goodman & James E Chaney, bodies discovered in an earthen Mississippi dam
The wreck of the SS Georgiana, valued at over $50,000,000 and said to have been the most powerful Confederate cruiser, was discovered by then teenage diver and pioneer underwater archaeologist E. Lee Spence exactly 102 years after its destruction.
Saturn's moon Epimetheus is discovered by Richard L. Walker.
Comet (Lubos) Kohoutek discovered at Hamburg Observatory
Largest known prime, 2 ^ 132,049-1, is discovered
A salmon is discovered in the River Thames, England, for the first time since 1833
Most complete early human skeleton (Lucy, Australopithecus) is discovered by Donald Johanson, Maurice Taieb, Yves Coppens and Tim White in the Middle Awash of Ethiopia's Afar Depression.
Oldest animal fossils in US discovered in NC
Red Dye No. 4 is banned by the US Food and Drug Administration after it is discovered that it causes tumors in the bladders of dogs. The dye is still used in Canada.
Rings of Uranus discovered during occulation of SAO
Paleontologist Elso Barghoorn announces that 34-billion-year-old one-celled fossils, the earliest life forms, had been discovered
The last natural case of smallpox was discovered in Merca district, Somalia. The WHO and the CDC consider this date the anniversary of the eradication of smallpox, the most spectacular success of vaccination.
Pluto's satelite Charon is discovered
1st extraterrestrial volcano discovered (Jupiter's satellite Io)
Oldest human skeleton, aged 80,000 years, discovered in Egypt
Centers for Disease Cont says virus discovered in France causes AIDS
US Supreme Court declares illegally obtained evidence may be admitted at trial if it could be proved that it would have been discovered legally
Hepatitis virus is discovered
1st "planet" outside our solar system discovered
Monitor, Civil War warship, is discovered by a deep sea robot
1st complete ring around Neptune discovered
Mausoleum of Beatrice of Brabant (1288) discovered in Kortrijk, Belgium
Asteroid Eureka is discovered.
Ötzi the Iceman, 3,300 BCE old mummy discovered by German tourists.
Dwingeloo 1, near milky way system, discovered
The chemical element Darmstadtium is discovered.
Most distant galaxy yet discovered found by scientists using Keck telescope in Hawaii (est 15 billion light years away)
Comet Hale-Bopp is discovered and becomes visible to the naked eye nearly a year later.
51 Pegasi was discovered to be the first major star apart from the Sun to have a planet (and extrasolar planet) orbiting around it.
Kennewick Man, the remains of a prehistoric man, is discovered near Kennewick, Washington.
1st Comet of 1997 Discovered: Comet 1997 A1
US Secretary of State Madeleine Albright announces she just discovered that her grandparents were Jewish
The CIH computer virus is discovered in Taiwan.
Argon fluorohydride, the first Argon compound ever known, is discovered at the University of Helsinki by Finnish scientists.
A hydrogen atmosphere is discovered on the extrasolar planet Osiris by the Hubble Space Telescope, the first atmosphere detected on an extrasolar planet.
Eris, the largest known dwarf planet in the solar system, is discovered by the team of Michael E. Brown, Chad Trujillo, and David L. Rabinowitz using images originally taken on October 21, 2003, at the Palomar Observatory.
The bodies of more than 40 patients discovered in a flooded hospital in New Orleans.
Liquid water is discovered on Enceladus, the sixth largest moon of Saturn.
Pluto's newly discovered moons are officially named Nix & Hydra.
The tomb of Herod the Great is discovered.
The Royal Australian Navy announces that they discovered the wreck of a World War II submarine in Simpson Harbour, Papua New Guinea during Operation RENDER SAFE - it is likely to be Japanese.
S/2012 P 1, the fifth moon of Pluto is discovered
The exoplanet Alpha Centauri Bb is discovered orbiting Alpha Centauri
CFBDSIR 2149-0403 is discovered, the closest rogue planet to earth (100 light-years away)
A 243 million year old Nyasasaurus fossil is discovered in Tanzania
Calcium deposits are discovered on Mars by NASA's Curiosity Rover
Kepler-37b, the smallest known exoplanet, is discovered
Poecilotheria rajaei, a giant tarantula with a 20cm leg span, is discovered in Sri Lanka
Fossilized dinosaur eggs with embryos are discovered in China
A man-made 32-foot and 60 tonne monument that is dates around 2000 BC is discovered in the Sea of Galilee
Two earth-like planets are discovered orbiting the star Kepler-62
Aorun zhaoi, a Theropod dinosaur, dating from 161 million years ago, is discovered in China
A 4.4 billion-year-old Crystal is discovered to be the oldest known fragment from the earth's crust
Christopher Columbus's flagship, the Santa Maria, is discovered north off the coast of Haiti
Aracheological remains of a Viking fortress from the 900s CE, the Vallø Borgring, is discovered in Denmark
Wolf 1061 exoplanet: 'Super-Earth' discovered only 14 light-years away
World's largest blue star sapphire -- worth $100M -- discovered
nothing here now
William Harvey, England, physician (discovered blood circulation)
Johannes Fabricius, Denmark, astronomer (discovered sunspots)
Christian Huygens, Holland, astronomer (discovered Saturn's rings)
Axel Fredrik Cronstedt, Turinge, Swedish Chemist who discovered nickel and tungsten
James Cook, Yorkshire, England, captain/explorer, discovered Sandwich Islands
Henry Cavendish, England, physicist/chemist (discovered hydrogen)
Joseph Priestley, England, Birstall England, clergyman/scientist (discovered oxygen)
F William Herschel, German/English astronomer (discovered Uranus)
Edward Jenner, England, physician, discovered vaccination
Wilhelm Olbers, discovered asteroids (Pallas & Vesta)
Johan Gadolin, Finnish chemist (discovered yttrium)
Louis-Nicolas Vauquelin, chemist (discovered chromium, beryllium)
Henri Dutrochet, discovered & named process of osmosis
Hunphry Davy, English chemist (discovered some elements)
Fabian Gottlieb von Bellinghausen, Estonia, Russian Explorer who discovered the continent of Antarctica
Georg Simon Ohm, Erlangen, Brandenburg-Bayreuth, German physicist (discovered Ohm's Law)
George Simon Ohm, physicist (discovered Ohm's Law)
Michael Faraday, discovered principle of electric motor
Karl Ernst von Baler, Russia, naturalist (discovered human ovum)
Charles Darwin, England, discovered evolution (Origin of the Species)
Johann G Galle, German astronomer (discovered Neptune)
Galen Clark, US, naturalist/discovered Mariposa Grove
James Prescott Joule, physicist (discovered conservation of energy)
Thomas Anderson, Scottish Chemist (discovered pyridine)
Edward Frankland, Lancaster, U.K, British structural chemist who co-discovered helium and developed the theory of valence
August Kekule von Stradonitz, discovered structure of benzene ring
Asaph Hall, discovered satellites of Mars (Phobos & Deimos)
Dmitri Mendeleev, chemist (discovered periodic table of the elements)
Giovanni Schiaparelli, Italy, astronomer (discovered canals of Mars)
Wilhelm Rontgen, Lennep, Rhine Province, discovered X-rays (Nobel 1901)
Friedrich Ernst Dorn, Guttstadt, Province of Prussia (now Warmia in Poland), German physicist who discovered that radon is emitted from radium
Oskar Hertwig, Germany, embryologist, discovered fertilization
Henri Becquerel [Antoine ], discovered radioactivity (Nobel 1903), (d. 1908)
Albert Neisser [Albert Ludwig Sigesmund Neisser], Schweidnitz Prussia, German physician who discovered the bacterias that cause gonorrhea and leprosy
J. J. Thomson, Manchester, England, physicist discovered electron (Nobel 1906)
Paul Ulrich Villard, Lyon, French Chemist and Physicist who discovered gamma rays
Dmitry Ivanovsky, Russian Botanist who discovered the organisms that came to be known as viruses
Marie Skłodowska-Curie, Warsaw, discovered radium (Nobel 1903, 1911)
Roald Amundsen, Norway, explorer, discovered South Pole
William Cumming Rose, Greenville South Carolina, American Biochemist who discovered threonine (an amino acid)
Walther Gerlach, Biebrich, German Physicist who, with Otto Stern, co-discovered spin quantization in a magnetic field (Stern—Gerlach effect)
James Chadwick, English physicist (discovered neutron)
Seth Barnes Nicholson, Springfield Illinois, American astronomer who discovered four satellites of Jupiter
Cynthia Harnett, Thieves Discovered
Norbert Wiener, US, mathematician/discovered cybernetics
Charles Glenn King, biochemist (discovered vitamin C)
Franz C. Schmelkes, Prague, Czech-born Chemist who discovered azochloramid (chlorazodin), widely used as a disinfectant to sterilize wounds and burns
Conrad Elvehjem, McFarland, Wisconsin, USA, American biochemist and nutrition scientist (discovered niacin)
Werner Heisenberg, German physicist/discovered uncertainty (Nobel 32)
Cecil Frank Powell, Tonbridge, Kent, physicist, discovered pion (Nobel 1950), (d.1969)
Emilio G. Segrè, Tivoli, Italian physicist and Nobel laureate (discovered the elements technetium, astatine and the sub-atomic antiparticle antiproton)
Albert Hofmann, Switzerland, chemist (discovered LSD)
Clyde William Tombaugh, US, astronomer (discovered Pluto)
Bengt Edlén, Swedish Astrophysicist who specialized in spectroscopy and discovered the source of unidentified emission lines in solar spectrum
James Van Allen, US physicist (discovered Van Allen radiation belts)
Francis Crick, English molecular biologist who co-discovered DNA's structure and Nobel laureate (1962)
John Hogan, Lowes, Kentucky, chemist (discovered methods of producing polypropylene), (d. 2012)
Manolis Andronicos, Bursa, Greek archaeologist who discovered ancient royal Macedonian tombs in northern Greece
Skeezix, of "Gasoline Alley" discovered on Wallets' doorstep
Audouin Dollfus, Paris, French Astronomer (discovered Janus, a moon of Saturn)
Porter Wagoner, country singer, discovered Dolly Parton (Y'All Come), (d. 2007)
James Watson, American chemist (co-discovered structure of DNA)
Wylie Walker Vale, Houston, Texas, Endocrinologist who discovered the stress hormone
James Rothman, Haverhill Massachusetts, American Biochemist and Nobel Laureate who discovered how vesicles, sac-like structures that transport hormones and growth factors, reach their destination in cells and know where and when to release their contents
Able J Tasmania, navigator/discovered (Tasmania, NZ), dies at about 56
Axel Fredrik Cronstedt, Swedish Chemist who discovered nickel and tungsten, dies at 42
F William Herschel, German astronomer (discovered Uranus), dies at 85
Fabian Gottlieb von Bellinghausen, Russian Explorer who discovered the continent of Antarctica, dies at 72
Johan Gadolin, Finnish chemist (discovered yttrium), dies at 92
Charles Fellows, English Archaeologist who discovered ruins of the cities of ancient Lycia and brought to Lycian marbles to England, dies
Thomas Anderson, Scottish Chemist (discovered pyridine), dies at 55
John Sutter, US colonist (gold discovered on his land), dies at 77
Edward Frankland, British structural chemist who co-discovered helium and developed the theory of valence, dies on holiday in Norway at 74
Henry Morton Stanley, Welsh journalist and African explorer (discovered source of the Nile), dies aged 63
Albert Neisser, German physician who discovered the bacterias that cause gonorrhea and leprosy, dies of septicemia at 61
Friedrich Ernst Dorn, German physicist who discovered that radon is emitted from radium, dies at 68
Dmitry Ivanovsky, Russian Botanist who discovered the organisms that came to be known as viruses, dies at 55
J Norman Lockyer, English physicist (discovered helium in Sun), dies
Paul Ulrich Villard, French Chemist and Physicist who discovered gamma rays, dies at 73
Franz C. Schmelkes, Czech-born Chemist who discovered azochloramid (chlorazodin), a disinfectant, dies of a heart attack at 43
P J Melotte, discovered Jupiter's 8th satellite Pasiphae, dies
Conrad Elvehjem, American biochemist and nutrition scientist (discovered niacin), dies at 61
Seth Barnes Nicholson, American astronomer who discovered four satellites of Jupiter, dies at 71
Cynthia Harnett, Thieves Discovered
Charles Glenn King, biochemist (discovered vitamin C), dies at 91
Emilio G. Segrè, Italian physicist and Nobel laureate (discovered the elements technetium, astatine and the sub-atomic antiparticle antiproton), dies at 84 of a heart attack
Manolis Andronicos, Greek archaeologist who discovered ancient royal Macedonian tombs in northern Greece, dies at 72
Bengt Edlén, Swedish Astrophysicist who specialized in spectroscopy and discovered the source of unidentified emission lines in solar spectrum, dies at 86
Audouin Dollfus, French Astronomer (discovered Janus, a moon of Saturn), dies at 85
Wylie Walker Vale, American Endocrinologist who discovered the stress hormone, dies at 70.
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