Bloodletting & Plato's Mathematical Philosophy

  • Ebers Papyrus
    1550 BCE

    Ebers Papyrus

    First evidence of bloodletting in Egypt.
  • Plato meets Socrates
    407 BCE

    Plato meets Socrates

    Plato formed the foundations of much of Western philosophy, and provided records of Socratic teachings.
  • Plato founded Academy
    380 BCE

    Plato founded Academy

    Plato founded the Academy outside of Athens to teach philosophy.
  • Plato teaches mathematics
    375 BCE

    Plato teaches mathematics

    Plato was convinced that geometry was the key to unlocking the secrets of the universe.
  • Plato's Republic written
    347 BCE

    Plato's Republic written

    The Republic, a literary masterpiece, describes 5 mathematical disciplines--arithmetic, plane geometry, solid geometry, astronomy, and harmonics.
  • Euclid's Elements written
    300 BCE

    Euclid's Elements written

    Euclid, father of geometry, studied in Plato’s ancient school in Athens and wrote "Elements".
  • Plato's Academy Closed
    529

    Plato's Academy Closed

    The doors to Plato's Academy officially closed after 900 years of service.
  • Barber Pole Invented
    1307

    Barber Pole Invented

    Red represented bloodletting & white signified bandages wrapped around wounds.
  • George Washington died after bloodletting

    George Washington died after bloodletting

    Washington died after physicians withdrew 2365 ml of blood to reduce swelling.
  • François Broussais

    François Broussais

    Recommended leeches to reduce inflammation and swelling.
  • Dr. Pierre Charles Alexandre Louis challenges bloodletting treatments

    Dr. Pierre Charles Alexandre Louis challenges bloodletting treatments

  • Dr. William Osler - Writer

    Dr. William Osler - Writer

    Sir William Osler (1850–1919) recommended bloodletting for pneumonia in final 1942 medical book edition.