HISTORY OF SCIENCE

• 570 BCE

  Pythagoras born
  

• 520 BCE

  Thales explains Natural Phenomena
  

• 469 BCE

  Socrates develops the Socratic Method
  

• 440 BCE

  Leucippus Helps Develop Atomism
  

• 440 BCE

  Hippocrates Founds Western Medicine
  

• 420 BCE

  Democritus Expands on Atomic Theory
  

• 387 BCE

  Plato Founded the Academy
  

• 287 BCE

  Archimedes: Density, Pi, and "Eureka"
  

• 280 BCE

  Herophilus Studies Comparative Anatomy
  

• 240 BCE

  Eratosthenes Measures the Earth's Circumference
  

• 134 BCE

  Hipparchus Predicts the Length of a Year
  

• 90

  Ptolemy and Astronomy
  

• 100 BCE

  Antikythera Mechanism: Astronomical Clock
  

• 144

  Galen - Foundation of Medicine
  

• 335 BCE

  Aristotle, foundational to Western Civilization
  

• 476

  Aryabhata - The great mathematician and Astronomer
  

• 565

  Loch Ness Monster First Sighting and Explanation
  

• 600

  Invention of the current number system
  

• 1000

  Alhazen Publishes "Book of Optics"
  

• 1027

  Avicenna – Central Asian Polymath
  

• 1220

  Robert Grossteste – A Founder of Scientific Thought
  

• 1267

  Roger Bacon - A Founder of Modern Science
  

• 1436

  Regiomontanus and Astronomy
  

• 1440

  Gutenberg invents the printing press
  

• 1452

  Leonardo Da Vinci - painter, bomb, airplane
  

• 1486

  Dias Sails Around Africa
  

• 1512

  Copernicus Puts the Sun at the Center of the Universe
  

• 1537

  Vesalius - Founder of Modern Anatomy
  

• 1545

  Niccolo Fontana Tartaglia – Solving the Cubic Equation
  

• 1562

  Fallopio Studies the Female Reproductive System
  

• 1583

  Bruno's Infinite Universe
  

• 1590

  Jansen and the 1st Telescope
  

• 1609

  Kepler's First 2 Laws of Planetary Motion
  

• 1620

  Sir Francis Bacon- a founder of modern Science.
  

• 1621

  Snell Discovers the Law of Refraction
  

• 1621

  Galileo Describes Acceleration
  

• 1638

  Descartes invents the Cartesian coordinate system
  

• 1662

  Boyle's Law
  

• 1665

  Hooke Names and Describes Cells
  

• 1666

  Newton's Law of Gravitation
  

• 1668

  Redi Disproves Spontaneous Generation
  

• 1683

  Van Leeuwenhoek Discovers Microorganisms
  

• 1687

  Newton Outlines Laws of Motion
  

• 1690

  Locke's "Tabula Rasa"
  

• 1738

  Bernoulli Describes Fluid Dynamics
  

• 1742

  Celsius Invents the Temperature Scale
  

• 1753

  Linnaeus Founds Taxonomy
  

• 1780

  First Thermodynamics Experiments
  

• 1781

  Frederick William Herschel – Discoverer of Uranus
  

• 1781

  Steam Engine
  

• 1786

  Coulomb Discovers Electrostatic Forces
  

• 1789

  Lavoisier Produces Controlled Chemical Reactions
  

• 1794

  E. Darwin and Natural Selection
  

• 1794

  Cotton Gin – A mechanical device for removing seeds from cotton fiber
  

• 1795

  Hutton Detemines the Earth's Age
  

• 1796

  Jenner Invents Vaccination
  

• 1796

  Laplace Expands on the Nebular Hypothesis
  

• 1800

  Alessandro Volta invents the battery
  

• 1801

  Piazzi Discovers an Asteroid
  

• 1801

  Dalton's Law of Partial Pressures
  

• 1808

  Dalton's Modern Atomic Theory
  

• 1809

  Lamarckian Inheritance
  

• 1811

  Avogadro Measures the Weight of Gases
  

• 1820

  Ampere Discovers Electromagnetism
  

• 1822

  Louis Pasteur – Best known for pasteurization
  

• 1824

  Paul Broca and discovery of language impairment
  

• 1831

  Faraday Discovers Electromagnetic Induction
  

• 1838

  Matthias Schleiden: All plants are made of cells

• 1839

  Vulcanization
  

• 1842

  The Doppler Effect
  

• 1849

  Elizabeth Blackwell is first woman to receive medical degree

• 1850

  Hermann Ebbinghaus and Research in Memory
  

• 1851

  Foucault and the Earth's pendulum
  

• 1855

  Bessemer process
  

• 1856

  Neanderthal Fossils Found
  

• 1859

  Charles Robert Darwin-founder of modern Evolutionary Theory
  

• 1865

  Deiters Presents an Accurate Image of a Nerve Cell
  

• 1865

  Mendel’s Law of Inheritance, Basis for Genetics

• 1867

  Antiseptic – An Invention of Dr. Joseph Lister
  

• 1876

  Bell Invents the Telephone
  

• 1878

  Flemming Describes Mitosis
  

• 1878

  Julius Ruchard Petri – Creating pure bacteriological cultiures
  

• 1879

  Arc Lamp – An invention by Charles F. Brush
  

• 1879

  The World's First Psychology Lab
  

• 1879

  Thomas Edison invented the first usable light bulb
  

• 1880

  Coal Extraction
  

• 1886

  1886 – Benz Patent Motor Car, the first vehicle powered by a gas engine
  

• 1895

  X-Ray: Discovery by Wilhelm Rontgen

• 1896

  Jean Piaget and Cognitive Development Theory
  

• 1897

  Felix Hoffman: Founder of Aspirin
  

• 1900

  Airship – An invention of Ferdinand Graf von Zeppelin
  

• 1903

  Wright Brothers First Flight
  

• 1903

  Marie Curie – Only person to win noble prizes in multiple sciences
  

• 1905

  Einstein goes under without Ether
  

• 1908

  The Discovery of the "Zombie" Bacteria
  

• 1908

  The First Intelligence Quotient Test
  

• 1912

  Henrietta Leavitt discovers period-luminosity relationship in astronomy
  

• 1912

  Theory of Continental Drift: Alfred Wegener
  

• 1913

  Niels Bohr: Model of the Atom

• 1921

  Loewi and the chemical transmission of nerves
  

• 1925

  Edwin Hubble an ever receding horizon
  

• 1926

  Baird Invents the Television
  

• 1928 - 1945

  Fleming Discovers Penicillin
  

• 1929

  Hubble Proves the Universe is Expanding
  

• 1932

  Sir James Chadwick discovers the neutron

• 1935

  Schrödinger's cat
  

• 1938

  László Bíró invented the first ballpoint pen
  

• 1939

  Invention of the atomic bomb
  

• 1941

  Hedy Lamarr Not just another pretty face
  

• 1943

  Avery proves that DNA is the genetic material of the chromosome

• 1947

  Breaking the Sound Barrier
  

• 1947

  Edwin Land Invents the Polaroid Instant Camera
  

• 1950

  Rocket Engine Development
  

• 1950

  Turing's test for artificial intelligence
  

• 1952

  Salk Produces Polio Vaccine
  

• 1953

  Watson and Crick Describe the Structure of DNA
  

• 1957

  Sputnik 1, 1st Satellite Launched
  

• 1957

  Cloud Seeding
  

• 1961-1963

  Bobo Doll Experiment
  

• 1961

  Stanley Milgram's Obedience Experiment
  

• 1962

  Rachel Carson Publishes "Silent Spring"
  

• 1969

  Moon Landing
  

• 1971

  NASA Mars Rover
  

• 1971

  Stanford Evil Prison Experiment
  

• 1974

  "Lucy" Fossil Found
  

• 1980

  Smallpox Eradicated
  

• 1980

  Alvarez and the K-T Extinction
  

• 1983

  Kary Mullis invents the polymerase chain reaction

• 1984

  Alec Jeffreys invents DNA fingerprinting and DNA profiling

• 1992

  The Internet and the World Wide Web
  

• 1994

  "Ardi" Fossil Found
  

• 1996

  Water Disinfection System: Ashok Gadgil
  

• 2003

  "Hobbit" Fossil Found
  

• 2003

  Human Genome Mapped
  

• 2006

  Shinya Yamanaka develops first induced pluripotent stem cells

• 2007

  Induced Pluripotent Stem Cells