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Jan 1, 1492
Christopher Columbus discovers America
Christopher Columbus found America while traveling through the ocean in a boat. -
Jan 1, 1543
Vesalius publishes findings on human anatomy in De Fabrica Corporis Humani
Discoveries now are becoming published in books for people to use and research -
Zacharius Jannssen invents the microscope
Zacharius put several lenses in a tube and made a very important discovery - the object near the end of the tube appeared to be greatly enlarged, much larger than any simple magnifying glass could achieve by itself. -
Zacharius Jannssen invents the microscope
Zacharius invents something that will be used crucially by many people and is still very important to hosipitals and lab testing today. -
Anton van Leeuwenhoek discovers blood cells
Blood cells we now know are a huge part of the body and very important and have many parts. -
Gabriel Fahrenheit creates the first mercury thermometer
Daniel Gabriel Fahrenheit was the German physicist who invented a alcohol thermometer in 1709, and the mercury thermometer in 1714. -
Declaration of Independence
Thomas Jefferson presents the United States Declaration of Independence. -
The Treaty Of Paris
The Treaty of Paris is signed by the United States and Great Britain. -
First President
The first President of the US is elected and it is George Washington. -
The Process of smallpox starts
Edward Jenner develops the process of vaccination for smallpox, the first vaccine for any disease. -
Rene Laennec invents the stethoscope
After creating the first stethoscope, he investigated the sounds made by the heart and lungs and determined that his diagnoses were supported by the observations made during autopsies. -
Rene Laennec invents the stethoscope
Finally we can hear peoples hearts beat in a easy way! -
Crawford W. Long uses ether as a general anesthetic
People hoped this anesthtic would work -
Dr. Horace Wells uses nitrous oxide as an anesthetic
Another type of anesthetic is experimented with -
Charles Gabriel Pravaz and Alexander Wood develop the syringe
The syringe is used a lot after the invention -
Louis Pasteur identifies germs as cause of disease
Finally we can start diagnosing problems and get to the bottom of diseases -
First contact lenses developed
People who need glasses now have an alternative to wearing glasses -
William Roentgen Discovered X-rays
William Roentgen accidently discovered the x-ray with his cathode ray generator. He practiced his first x-ray on his wife's hand and saw her wedding ring and her finger bones. -
First vaccine developed for typhoid fever
Hope that the typhoid fever will not exist anymore -
Felix Hoffman develops aspirin
Aspirin is a very important drug that was invented -
World War 1 starts
World War I was fought during the years 1914 to 1918, in which Great Britain, France, Russia, Belgium, Italy, Japan, the United States, and other allies defeated Germany, Austria-Hungary, Turkey, and Bulgaria. -
Earle Dickson Invented the Band-Aid
At that time a bandage consisted of separate gauze and adhesive tape that you would cut to size and apply yourself. Earle Dickson noticed that gauze and adhesive tape she used would soon fall off her active fingers. He decided to invent something that would stay in place and protect small wounds better. -
First vaccine developed for whooping cough
Vaccines such as this become very important in the world -
The Dust Bowl Begins
The Dust Bowl, or the Dirty Thirties, was a period of severe dust storms causing major ecological and agricultural damage to American and Canadian prairie lands from 1930 to 1936. -
World War 2 Starts
The war was fought chiefly between two major alliances: the Axis and the Allies. The axis was Germany, Italy and Japan. -
Pearl Harbor is attacked
By complete surprise, the Japanese high military command attacked the military base at Pearl Harbor, Hawaii, killing thousands, destroying hundreds of vessels, and propelling the United States into World War II. -
Selman A. Waksman discovers the antibiotic streptomycin
Discovery of antibiotics like this one become more important and useful -
The Cold War
The Cold War was a war between the united states and the soviet union. -
John Hopps invented the first cardiac pacemaker
In his testing, he attempted to use radio frequency to restore body temperature, and made a discovery that was unexpected. He found that by using mechanical means the heart could be artificially started again after it was exposed to a cooling process. With this discovery, Hopps was able to build the first pacemaker in 1950. -
Thomas Fogarty invented the balloon embolectomy catheter
The Foley catheter is a rubber tube with a balloon tip named after it's inventor. After insertion into the bladder via the urethra, the tip is filled using a syringe with sterilized liquid or air, in order to keep the catheter in place. This type of catheter allows for continuous draining of the bladder, important during and after surgery. -
Dr. Christiaan Barnard performs the first human heart transplant
People can now live with a different heart if theirs fails them and surgery goes well, many lives saved! -
Robert S. Ledley invents CAT-Scans
New "precise" way to take x-rays is invented -
First test-tube baby is born
Baby is born that was created when the eggs and sperm were united in a petri dish then put back into the mother, people were stunned! -
First vaccine developed for meningitis.
Meningitis can now be prevented -
Smallpox is eradicated
Huge event in medical history! -
Alec Jeffreys devises a genetic fingerprinting method
Fingerprints can now be traced to ancestor's fingerprints -
Willem J. Kolff invented the artificial kidney dialysis machine
Kidney dialysis takes the blood from the body and removes impurities. -
Willem J. Kolff invented the artificial kidney dialysis machine
Medical machines become very useful -
Dolly the sheep becomes the first clone
The world of cloning begins! -
Current President is elected
Forty - Fourth President of the US is BarackObama. -
Sir Christopher Wren experiments with canine blood transfusions
Transfusions become a hope!
