-
Proved blood circulated throughout the body. -
Invented the microscope :
The invention of the microscope was important because the microscope allowed scientist to see tiny objects such as cells, bacteria and many others. -
Invented the 1st vaccine for any disease : Small pox vaccine -
Discovered X-rays :
X-rays allowed doctors to see the inside of the human body for the first time without surgery. -
Developed modern classification of blood types and classification of blood groups. -
Discovered insulin and the mechanisms of diabetes. -
Discovered penicillin :
Penicillin helped easily treat infections that were severe and life threatening. most used antibiotic -
Discovered drugs to treat leukemia and to make organ transplants possible. -
Discovered how cells repair damaged DNA, which led to new ways to treat cancer and other diseases. -
Developed methods of treating blindness and invented/ patented a device and methods used to treat cataracts (laserphaco).