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Anesthetic
Sir Humphry Davy discovers the anesthetic properties of nitrous oxide -
Political
John Marshall is appointed Chief Justice of the Supreme Court of the United States. -
Political
Thomas Jefferson is elected as the 3rd president of the United States in a vote of the House of Representatives after tying Aaron Burr -
Political
The first steam-powered ferry service between New York City and Hoboken, New Jersey is started on John Steven's ship, the Juliana. -
Stethoscope
Rene Laennec invents the stethoscope -
Transfusion
James Blundell performs the first successful transfusion of human blood -
Political
Andrew Jackson, now in the Democratic party, is inaugurated as President, replacing John Quincy Adams after his sole term in office. -
Ether
Crawford W. Long uses ether as a general anesthetic -
Dentist
William Morton, a dentist, is the first to publish the process of using anesthetic properties of nitrous oxide -
Fever
Ignaz Semmelweis discovers how to the prevent the transmission of puerperal fever -
Medical Degree
Elizabeth Blackwell is the first woman to gain a medical degree from Geneva Medical College in New York -
Syringe
Charles Gabriel Pravaz and Alexander Wood develop the syringe -
Political
The Gadsden Purchase is consummated, with the United States buying a 29,640 square mile tract of land in present-day Arizona and New Mexico -
Germs
Louis Pasteur identifies germs as cause of disease -
Antiseptic Surgical Methods
Joseph Lister develops the use of antiseptic surgical methods and publishes Antiseptic Principle of the Practice of Surgery -
Vaccines
First vaccine developed for anthrax by Louis Pasteur -
Vaccines
First vaccine for developed for rabies by Louis Pasteur -
Heart Surgery
First successful heart surgery performed, in Germany. Surgeons repaired a stab wound in the muscle of the right ventricle. -
Aspirin
Felix Hoffman develops aspirin -
Blood Groups
Karl Landsteiner introduces the system to classify blood into A, B, AB, and O groups -
Plastic Surgery
First documented plastic surgery performed, on a burned English sailor.
