4.9 It's timeline time

  • 80

    Claudius Ptolemy is born

    In Alexandria, Egypt. He contributed evidence to the geocentric view which incorporated epicycles. He also created tables that allowed for predictions about the movements of the universe.
  • 165

    Claudius Ptolemy Dies

    Also in Alexandria, Egypt. He was influenced by his schooling as well as the advanced library in Alexandria.
  • Feb 19, 1473

    Nicolaus Copernicus is born

    In Torun, Poland
  • 1492

    Copernicus questions theories

    Copernicus began to question the geocentric views proposed by Ptolemy and Aristotle, tow of his biggest influences.
  • 1532

    Copernicus speaks out

    Copernicus' complete and detailed manuscrit on the heliocentric view is complete.
  • May 24, 1543

    Nicolaus Copernicus Dies

    In Frombork, Poland.
  • Feb 15, 1564

    Galileo Galilei is born

    In Pisa, Italy.
  • Galileo writes to Kepler

    Galileo wrote a letter to Johannes Kepler that he agreed with the heliocentric view.
  • Galileo observes the moon and Jupiter

    With his improved version of the telescope Galileo was able to make never before seen observations of the universe.
  • Galileo states agreement with Copernicus

    Galileo stated that he agreed with Copernicus' observations and views of the universe. Copernicus was one of his biggest influences.
  • Galileo Galilei Dies

    In Florence, Italy while under house arrest.
  • Isaac newton is Born

    In Woolsthorpe Manor House, united Kingdom
  • Newton develops the theories of gravitation

  • Newton presents his three laws of motion

  • Isaac Newton Dies

    Throughout his career Newton was influenced by his schooling and upbringing. He was also influenced by Galileo who provided evidence for Newton's first law of motion.
  • Dimitri Mendeleev is born

    im Tobolsk, Siberia (Russia)
  • Marie Curie is born

    In Warsaw, Poland.
  • Mendeleev creates the periodic table of elements

    It came to him on a train and his idea of organization was influenced by the card game solitaire
  • Discovers the elements polonium and radium

    Came up with the term radioactive.
  • Curie discovers alpha and beta rays

    Working with two other scientists she distinguished two different kinds of particles from radioactive substances.
  • Curie sees radioactive radium

    Important in understanding the structure of an atom.
  • Dimitri Mendeleev dies

    In St. Petersburg, Russia. Of the flu.
  • Marie Curie dies

    In a sanatorium in France.