BHP Small Scale

By e35910
  • 236 BCE

    Eratosthenes becomes the chief librarian of the library in Alexandria

  • 85 BCE

    Ptolemy

    He was born, studied the geocentric view, and died around this period.
  • 85 BCE

    Ptolemy

    He was born, studied, and died around this time period.
  • 236

    Eratosthenes measures the circumference of the Earth

    The date is not known, but is after 236 BCE
  • 1100

    Ptolemy- 12 century

    During the 12th century, his book was translated to latin, and his ideas were spread all throughout Europe.
  • Feb 19, 1473

    Copernicus was born

  • 1514

    Copernicus wrote "The Little Commentary"

  • May 23, 1543

    Copernicus died

  • Dec 14, 1546

    Tycho Brahe is born

  • Jan 22, 1561

    Francis Bacon is born

  • Feb 15, 1564

    Galileo was born

  • Feb 15, 1564

    Galileo was born

  • Dec 27, 1571

    Kepler is born

  • Rene Descartes is born

  • Tycho Brahe dies

    He died of kidney failure

  • Galileo improved the telescope

  • Galileo published "Letters in Sunspots"

  • Francis Bacon dies

    He died of pneumonia

  • Kepler dies

    Kepler dies of Acute Disease
  • Period: to

    John Locke's theory

    Locke believed that human nature is characterised by reason and tolerance.

  • John Locke is born

  • Galileo died

  • Descartes says "Cogito, ergo sum."

    "Cogito, ergo sum." means "I think, therefore I am."

  • Newton was born

  • Rene Descartes dies

    He died of pneumonia

  • John Locke dies

  • Newton dies

  • Leavitt hired at Harvard

  • Alfred Wegener is born

    He was born in Berlin to a protestant pastor

  • Leavitt publishes her paper on period-luminosity correlation

  • Wegener co-writes "

    Co-writes the textbook "The Thermodynamics of the Atmosphere"

  • Wegener writes "The Origins of Continents and Oceans"

    It claimed that there was a supercontinent called Pangea 300 million years ago.

  • Leavitt dies of cancer

  • Hubble discovers that Andromeda is 1 million light years away and is a galaxy.

  • Hubble discovers that the galaxy is expanding out

  • Wegener dies

    He and his companion die on their return trip from Antarctica

  • Hess discovers that the seafloor is not smooth

  • Hubble helped complete and was the first to use the Hale telescope

  • Hubble dies of a heart attack in San Marino, California.

  • Hess writes "The Origin of Ocean Basins

    His theory in the book becomes known as seafloor spreading