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Oct 25, 1500
Ptolemy
Ptolemy lived during the 2nd century and was an ancient greek astronomer.He made a Geocentric model of the universe which put the earth at the center of the universe. Ptolemy made a theory that the universe is a series of concentric spheres.
http://www.windows2universe.org/people/ancient_epoch/ptolemy.html -
Oct 24, 1543
Nicholas Copernicus
Nicholas Copernicus was an mathematican and astronomer who made a model of the universe and placed the sun at the center. His book was a major event in the history of science. Nicholas Copernicus argued that the earth rotated on its axis and the sun didn't move. He made the theory that the ptolemaic system was to complex.
http://en.wikipedia.org/wiki/Nicolaus_Copernicus -
Galileo Galilei
Galileo was the first European to make observations on the moon. Gslileo went blind in one eye by looking directly into the sun. Galileo was put on trial by the church and found guilty by his observations. He was an Italian astronomer and mathematician. http://inventors.about.com/od/gstartinventors/a/Galileo_Galilei.htm -
William Harvey
William Harvey discovered that the heart was the beginning point of the circulation. Harvey could not explain why the hear beats.In 1609 he was choosen to be a physician at St. Bartholomew’s Hospital.
http://scienceworld.wolfram.com/biography/Harvey.html -
American Revolution
The American Revolution is also known as the U.S. War of Independence.The conflict was between Great Britian and the colonists.France entered the war on the colonists side. With French assistance the British surrendered in Yorktown, Virginia in 1779. http://americanfounding.blogspot.com/2010/04/when-did-american-revolution-start.html -
Declaration of Independence
"The Declaration of independence is the founding document of the American political tradition". The Declaration of Independence set the rules that form the nation. The Declaration of Independence writing makes us appreciate the claims even more.
http://www.history.com/topics/declaration-of-independence
