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460
Atom named by Democritus
(460 B.C.) Democritus decided that all mater was made of tiny indivisible particles. These particles were shaped differently based on the proporties of the substance which they created. -
461
Arisotles veiw of the universe
(384 B.C.) Aristotole belived that the universe was made of four qualities that described all substances. They were dryness, wetness, heat and cold. -
Oct 1, 1066
The norman conquest of britain
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Oct 1, 1215
Magna carta signed
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Oct 5, 1348
the black plauge begins
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Oct 1, 1543
copernicuses heliocentric univese
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newtons laws of universal gravitation
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joeseph proust
created the law of deffinite poportions, which stated that the same amounts of the same element have the same number of elements in them. -
John Dalton
John Dalton discovered that different elements had different masses. He also stated that one mass unit was equal to one hydrogen atom. -
Ode to Joy by Beethoven written
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darwins origin of species
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henri Becquerel's discovery of radiation
While trying to prove that x-rays were emited with light, Henri accidentally discovered radiation, when he placed uranium on wave sensitive plates. -
J.J. Thomson
Thomson created the Plum pudding model of an atom, in which there is a cloud of protons and electrons. He discoved electrons simultaniously. -
Ernest Rutherford
Rutherford discovered forms of radio active decay, including alpha and beta decay. He sugessted a model of an atom, where teh mass was located in the center nucleus. -
Neils bohr's model
In 1913 Neils Bohr created his theory of atomic structure, which was a planetary model of electrons around the neucleus of an atom. -
robert Millikan
he found the correct chrge and mass of electrons. -
Max planck
this is when Max Planck wn the nobel prize for the origin of Quantm theory. -
Werner Heisenberg
Heisenberg intorduced the matrix mechanics model. It was too complicated, and rejected. -
Erwin Schrodinger
Schrodinger treated atoms as waves rather than as mass, called waves of mass. He also created Schrodinger's equation which shows the behavior of these waves -
Louis de Broglie
de Broglie created an equation specifing the wave length based on planck's constant diveded by the momentum of the electron. -
James chadwick
James chadwick first discovered the neutron in the neucleus. He observed its neutral charge, and its weight. -
Ceaser killed
(44 bc) -
Sgt. Peppers Lonley Hearts Club Band was released
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mayans predict the end of the world as we know it
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Koryo Dynasty of Korea begins
This is the dynasty from which Korea derrived its name