Changing Timelines

By semcl919
  • 276 BCE

    Eratosthenes Birth

  • 240 BCE

    Eratosthenes measures circumference of the Earth

  • 194 BCE

    Eratosthenes Death

  • 85

    Ptolemy birth

  • 127

    Ptolemy begins observing solar system and stars

  • 140

    Ptolemy develops Geocentric view

  • 141

    Ptolemy makes last observations of solar system

  • 165

    Ptolemy death

  • Feb 19, 1473

    Copernicus birth

  • 1502

    Copernicus notices contradictions between Aristotle's theory of the solar system and Ptolemy's explanation using eccentric orbits and epicycles

  • 1514

    Copernicus finished writing Little Commentary, expounds heliocentric theory

  • 1532

    Copernicus completes On the Revolutions of the Celestial Spheres

  • May 24, 1543

    Copernicus death

  • Feb 15, 1564

    Galileo birth

  • Galileo invents first telescope

  • Galileo discovers Jupiter

  • Galileo publishes first book

  • Galileo's second book

  • Galileo death

  • Newton birth

  • Newton publishes first book

  • Newton becomes president of the Royal Society

  • Newton publishes second book

  • Newton death

  • Darwin Birth

  • Mendeleev Birth

  • Darwin goes on voyage to Galapagos

  • Darwin publishes On the Origin of Species

  • Mendeleev wrote "Organic Chemistry"

  • Curie Birth

  • Mendeleev published the first edition of "Principles of Chemistry" about inorganic chemistry

  • Mendeleev had a dream of the periodic table

  • Mendeleev's idea of the periodic table is stolen by Julius Lother Meyer

  • Wegner Birth

  • Darwin Death

  • Curie gets degree in Physics

  • Wilhelm Roentgen Discovers X-rays

  • Discovers "polonium" and later "radium" two highly radioactive elements

  • Curie and her husband receive Nobel Prize in physics

  • Hess' Birth

  • Mendeleev Death

  • Curie receives second Nobel Prize in chemistry

  • Wegener publishes The Origin of Continents and Oceans

  • Crick Birth

  • Franklin Birth

  • Watson Birth

  • Wegner Death

  • Curie Death

  • Pauling starts x-ray crystallography

    (early 1950s)

  • Wilkins shows diffraction image to Watson

  • Watson and Crick publish A Structure for Deoxyribose Nucleic Acid

  • Franklin Death

  • Hess publishes History of Ocean Basins

    discusses theory of "seafloor spreading"

  • Geophysicists realize that Earth's magnetic field has reversed polarity numerous times

  • Hess' Death

  • Crick Death