(1813) English physician John Snow is born. He was an advocate for the adoption of anesthesia and medical hygiene.
(1854) German physiologist Emil von Behring is born. He won the 1901 Nobel Prize in Physiology or Medicine for his discovery of a diphtheria antitoxin.
(1860) Russian Empire Jewish bacteriologist Waldemar Haffkine is born. He is known for developing the first vaccines against cholera and the bubonic plague.
