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Believed that earth, water, fire, air, aether made up matter.
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Publishes method of Nomenclature, the first modern system of chemical nomenclature.
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Created elements from water. Joseph also created the law of definite proportions.
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Through his interest in metorology, he calculated atomic weights and determined atomic structure of each compound.
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Created an experimental gas law, relating volume of a gas to the amount of substance present.
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This is the year that the civil war began in the United States.
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After many years of fighting, the Civil War finally ended.
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Investigated cathode rays, and also studied spectroscopy. He studied, what is now called plasmas, the fourth state of matter. He also discovered the element thallium.
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In this year, the game of volleyball was invented.
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Experimented with Uranium salts, that may have led to penetrating x-ray-like radiation. Henri also discovered many different elements.
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Discovered the electron by estimating the mass of the cathrode rays.
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Studied radiation and is well-known for having died of radiation poisoning because she did not know the effects that it had on the body.
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Robert studied the charge of the electron. Used the oil-drop experiment to measure the charge of the electrons by using water.
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He proved the nuclear model of the atom, which he recreated his own model of, adding the electron cloud, which is made up of valanve electrons.
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Introduced the idea of atomic number which fixed Mendelev's periodic table, which used to be based on atomic weight.
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Proposed, which is now known as the Bohr model of the atom, where electrons exist only in specific orbitals.
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In this year, the alliances formed and a global war broke out.
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Originated the quantum theory.
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The global fight finally ended in 1918.
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In 1919, the Treaty of Versailles was made and signed.
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Explained the motion of molecules, laid the foundation of the photon theory of light, special theory of relativity. Albert is also well-known for his E=MC^2 equation.
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Studied the wave nature of electrons.
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Created the Schrodinger equation of the relativistic doppler effect for spectro lines; wave mechanics.
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Developed the uncertainty principal.
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Discovered the neutron.
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This is the year that the world war began once again; known more for the Holocaust.
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In this year, the Americans flooded the shores of Normandy where they finally broke through the German military to take a lead in the second world war.
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FInally, after ruthless fighting, the second world war came to an end.
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The war on terror began in 2001 after the terrorist attacks that occured--the plane crash at the Twin Towers and the Pentagon.
