With the invention of the Microscope in the 17th century many discoveries were made. Leewenhoek, a Dutch scientist, discovered red blood cells, bacteria, and protozoa. Marcello Leigh was the first person to see capillaries.
It was also during this century that the royal society London, the Academe Des Sciences in Paris and the Nature curiosorum in Germany were founded. There societies were responsible for spreading medical information through journal publications.
Probably one of the most important inventions in science was the microscope. the use of the ground lenses as a magnifying glass was already old, and eyeglasses had been already made n the middle ages. The first textbook using the microscope was made by Francisco Stelluti, on the structure of a bee. In 1655 Pierre Borel made the first use of microscope when he referred to worm like creatures in the blood of patients with fevers. But overall the two biggest people of microscopy in the 17th century were Marcello Malpighi and Antony van Leeuwenhoek.
Leeuwenhoek looked at everything imaginable with his microscpoe, and his reports led him to huge medical advances.
