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Jan 1, 1450
Gutenberg printing press
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Jan 1, 1492
Discovery of the Americas
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Jan 1, 1517
Reformation of the Catholic Church start
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Galileo convicted of heresy
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Reformation of the Catholic Church end
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Joseph Priestley
discovered oxygen, carbon monoxide and nitrogen dioxide -
Declaration of Independance
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Antoine Lavoisier
law of conservation of mass: father of modern chemistry -
Alessandro Volta
electrochemical cell and batteries -
John Dalton
solid sphere model -
Michael Faraday
electricity and electrochemistry -
Civil War start
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Louis Pasteur
pasteurization process -
First transcontinental railroad in US start
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civil war end
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First transcontinental railroad in US end
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Alfred Nobel
dynamite, nobel prize -
Henri Becquerel
radioactivity -
Marie Curie
radioactivity -
Guglielmo Marconi
radio -
Max Planck
equation describing the blackbody spectrum -
Ernest Rutherford
named half-life and deflected alpha rays with both electric and magnetic fields. -
Albert Einstein
photoelectric effect -
J.J. Thomson
discovered electrons and isotopes, invented mass spectrometer -
Eugen Goldstein
discovered proton -
Robert Millikan
charge of electron -
Henry Moseley
number of positive charges in nucleus -
Assassination of Archduke Ferdinand
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Bolshevik Revolution
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Treaty of Versailles
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Neils Bohr
electrons in definate energy levels around nucleus -
Philo Farnsworth
TV -
Sir Frederick Banting
isolated insulin -
Louis deBroglie
duality principle- all particles have wave like properties -
Werner Heisenberg
derived uncertainty principle -
Wallace Carothers
neoprene and nylon -
James Chadwick
discovered neutron -
Erwin Schrodinger
schrodinger equation -
Bombing of Pearl Harbor
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Leo Szilard
nuclear chain reactions and atomic bomb -
First cellular phone
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Kary Mullis
polymerase chain reaction -
Initial concept for world wide web
