By Crozier
  • Jan 1, 1000


    (460-370) Proposed the idea that matter was not infinitely divisible.
  • Jan 1, 1000


    (384-322) Believed that atoms moved through empty space.
  • Antoine Lavoisier

    Known as the father of modern chemsitry. Founded oxygen and hydrogen. (1778, 1783)
  • Eli Whitney

    He invented the cotton gin.
  • Joseph Proust

    Disproved Bertholett with the law of definite proportions.
  • John Dalton

    (1766-1844) Believed atoms can't be created, divided, or destroyed.
  • Robert Fulton

    He invented the steamboat.
  • Amedeo Avogadro

    Known for his contributions to the molecular theory, including what is known as Avogadro's law.
  • War of 1812

    The war between the Americans and the British.
  • Abraham Lincoln

    He becomes president.
  • The Red River War

  • Panama Canal

    Construction begins.
  • William Crooks

    (1861-1895) Discovered helium and thallium.
  • Ellis Island

    Becomes the new immigration process center.
  • Henri Becquerel

    Discovered radioactivity.
  • Marie Curie

    Famous for her pioneering research on radioactivity.
  • Albert Einstein

    Famous for his special theory of relativity of E = mc^2.
  • Robert Millikan

    (1908-1910) Noticed the charge of the electron.

    Is founded.
  • J.J Thompson

    (1897-1912) Discovered the electrons and the isotopes.
  • Titanic

    Titanic sinks.
  • Max Planck

    Founder of the quantum theory.
  • Radio

    The first radio begins in the US.
  • Niels Bohr

    Made fundamental contributions understanding atomic structure and quantum mechanics.
  • Henry Moseley

    Had the concept of the atomic number.
  • Werner Heisenberg

    Known for asserting the uncertainty principle of the quantum theory. He also made important contributions to nuclear physics, quantum field theory, and particle physics.
  • Louis DeBroglie

    Had the theory of electron waves.
  • James Chadwick

    Discovered the neutron.
  • Ernest Rutherford

    Father of nuclear physics, noticed that atoms have their positive charge concentrated in a very small nucleus.
  • Erwin Schrodinger

    One of the father of quantum mechanics. Created the Schrodinger equation.