2.5 Timeline By kahel276 276 BCE Eratosthenes born 85 Ptoloemy born 165 Ptolemy death 195 Erastothenes death Feb 19, 1473 Copernicus born 1492 Copernicus Copernicus studied mathematics and Greek and Islamic astronomy at University of Krakow 1497 Copernicus elected a canon of the cathedral in Frombork 1503 Copernicus returned to live in his uncle’s castle and serve as his secretary and physician 1514 Copernicus wrote a report, Little Commentary, that expounded his heliocentric theory 1541 Copernicus agreed to publication of his study May 24, 1543 Copernicus death Feb 15, 1564 Galileo born 1581 Galileo studied medicine until 1585 1587 Galileo taught mathematics at the University of Pisa 1590 Galileo secured the chair of mathematics at University of Padua 1597 Galileo wrote letter to Kepler in support of Copernicus 1604 Galileo observed supernova 1609 Galileo saw for the first time 4 moons orbiting Jupiter 1609 Galileo created telescopic device 3x more powerful than previous Dutch device 1632 Galileo published his book Dialogue Concerning the Two Chief World Systems — Ptolemaic and Copernican 1633 Galileo sentenced house arrest after trial for his book supporting heliocentric view Jan 9, 1641 Galileo death Jan 4, 1643 Isaac Newton Born 1661 Newton attends Cambridge University 1665 Newton's White Light Discovery 1687 Newton Publishes Mathematical Principles of Natural Philosophy 1704 Newton published "Opticks" 1707 Newton knighted by Queen Anne Mar 31, 1727 Newton death Feb 8, 1834 Mendeleev born 1855 Mendeleev graduates as science teacher 1861 Mendeleev publishes Organic Chemistry 1866 Mendeleev chemistry professor at St. Petersburg 1867 Marie Curie born Feb 17, 1869 Mendeleev creates the periodic table of elements Nov 1, 1880 Wegener born 1890 noble gases discovered 1893 Marie Curie became first woman to earn physics degree from Sorbonne 1897 Curie begins working on radioactivity 1898 Curie discovers polonium and radium 1899 Curie discovers alpha and beta rays 1903 Curie receives doctorate 1903 Curie becomes first woman awarded Nobel Prize 1904 Wegener receives PhD from University of Britain in Astronomy May 24, 1906 Hess born 1907 Mendeleev death 1910 Wegener realizes South America and Africa fit together 1911 Curie receives second Nobel Prize in chemistry 1911 Wegener co-wrote The Thermodynamics of the Atmosphere 1915 Wegener publishes The Origin of Continents and Oceans Jun 8, 1916 Crick born Jul 25, 1920 Franklin born 1926 Wegener attends conference in NY and had his ideas spat on Apr 6, 1928 Watson born 1930 Wegener death 1934 Marie Curie death 1939 Wegener leads dogsled team in arctic 1950 Linus Pauling determines helix shape of DNA 1951 Franklin joins Biophysics at Kings 1952 Franklin took clear photo of DNA through X-ray diffraction 1953 Watson and Crick admit to using Franklin's evidence and finally give her credit Apr 16, 1958 Franklin death 1962 Watson, Crick, and Wilkins receive Nobel Prize, Franklin had already died 1962 Hess publishes History of Ocean Basins 1963 Earths magnetic field has reversed its polarity multiple times discovery 1966 Watson plans sequencing human genome Aug 25, 1969 Hess death 1970 Plate tectonics becomes the used term Jul 28, 2004 crick death