Atomic Theory Timeline

  • Gutenberg printing press
    Jan 1, 1450

    Gutenberg printing press

  • Discovery of the Americas
    Jan 1, 1492

    Discovery of the Americas

  • Reformation of the Catholic Church start
    Jan 1, 1517

    Reformation of the Catholic Church start

  • Galileo convicted of heresy

    Galileo convicted of heresy

  • Reformation of the Catholic Church end

    Reformation of the Catholic Church end

  • Joseph Priestley

    Joseph Priestley

    discovered oxygen, carbon monoxide and nitrogen dioxide
  • Declaration of Independance

    Declaration of Independance

  • Antoine Lavoisier

    Antoine Lavoisier

    law of conservation of mass: father of modern chemistry
  • Alessandro Volta

    Alessandro Volta

    electrochemical cell and batteries
  • John Dalton

    John Dalton

    solid sphere model
  • Michael Faraday

    Michael Faraday

    electricity and electrochemistry
  • Civil War start

    Civil War start

  • Louis Pasteur

    Louis Pasteur

    pasteurization process
  • First transcontinental railroad in US start

    First transcontinental railroad in US start

  • civil war end

    civil war end

  • First transcontinental railroad in US end

    First transcontinental railroad in US end

  • Alfred Nobel

    Alfred Nobel

    dynamite, nobel prize
  • Henri Becquerel

    Henri Becquerel

    radioactivity
  • Marie Curie

    Marie Curie

    radioactivity
  • Guglielmo Marconi

    Guglielmo Marconi

    radio
  • Max Planck

    Max Planck

    equation describing the blackbody spectrum
  • Ernest Rutherford

    Ernest Rutherford

    named half-life and deflected alpha rays with both electric and magnetic fields.
  • Albert Einstein

    Albert Einstein

    photoelectric effect
  • J.J. Thomson

    J.J. Thomson

    discovered electrons and isotopes, invented mass spectrometer
  • Eugen Goldstein

    Eugen Goldstein

    discovered proton
  • Robert Millikan

    Robert Millikan

    charge of electron
  • Henry Moseley

    Henry Moseley

    number of positive charges in nucleus
  • Assassination of Archduke Ferdinand

    Assassination of Archduke Ferdinand

  • Bolshevik Revolution

    Bolshevik Revolution

  • Treaty of Versailles

    Treaty of Versailles

  • Neils Bohr

    Neils Bohr

    electrons in definate energy levels around nucleus
  • Philo Farnsworth

    Philo Farnsworth

    TV
  • Sir Frederick Banting

    Sir Frederick Banting

    isolated insulin
  • Louis deBroglie

    Louis deBroglie

    duality principle- all particles have wave like properties
  • Werner Heisenberg

    Werner Heisenberg

    derived uncertainty principle
  • Wallace Carothers

    Wallace Carothers

    neoprene and nylon
  • James Chadwick

    James Chadwick

    discovered neutron
  • Erwin Schrodinger

    Erwin Schrodinger

    schrodinger equation
  • Bombing of Pearl Harbor

    Bombing of Pearl Harbor

  • Leo Szilard

    Leo Szilard

    nuclear chain reactions and atomic bomb
  • First cellular phone

    First cellular phone

  • Kary Mullis

    Kary Mullis

    polymerase chain reaction
  • Initial concept for world wide web

    Initial concept for world wide web