Hippocrates maintains that diseases have natural causes and puts forth the Hippocratic Oath.
Dioclese writes the first known anatomy book.
Galen defines clinical medicine based on observation and experience.
Roger Bacon invents spectacles.
Leonardo da Vinci dissects corpse.
Zacharius Jannssen invents the microscope.
William Harvey publishes An Anatomical Study of the Motion of the Heart and of the Blood in Animals.
Rene Laennac invents the stethoscope.
James Blundell Performs the first successful human blood transfusion.
X-rays discovered by Wilhelm Conrad Roentgen.
Willem Einthoven invents electro-cardiography (ECG/EKG).
James Watson and Francis Crick work on the structure of the DNA molecule.
Joseph Murray performs the first human kidney transplant.
Mass General clinicians pioneer telemedicine, the practice of medicine over closed-circuit television.
First MRI and CAT Scan developed.
First tele-surgery performed by Jacques Marescaux.
Hippo Technologies launches Hippo Virtual Care platform and pioneers Polymorphic Medicine.