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500 BCE
Sushruta How Are Diseases Spread
Sushruta Samhita theorized that diseases are caused by one person spending time together doing different things. -
300 BCE
Hippocrates Miasma Theory
He thought diseases were caused by bad air, this theory was accepted in Europe and China in ancient times. -
Janssen Microscope
Zacharias Janssen invented the microscope, the germ theory could not have been developed without the microscope. -
Hooke Micrographia Book
Robert Hooke published Micrographia, this book was filled with drawings and descriptions of the organisms he viewed under the new microscope. -
Schwann Cells in Animals
Theodor Schwann discovers that all animals are made of cells as well. This event made many people propose the name "Cell Theory" -
Shleiden Cell in Plants
Matthias Shleiden discovered that all plants are made of cells. -
Semmelweiss Experiment of Hygiene
Ignaz Philipp Semmelweiss discovered that simply hand washing reduces spread of childbed fever among patients in a hospital from approximately 12% to 1%, though no one believed him. -
von Siebold Cell in Microbes
Karl Theodor Ernst von Siebold discovered that microbes are also made of cells too, though not many cells, just one cell. -
Louis Pasteur Germ Theory
Louis realizes the Germ Theory of Disease or pasteurization. this is the idea that infectious diseases are caused by germs, and then spread about by people. -
Kosh Particular Germs
Robert Kosh (different from Koch) colcluded that particular microbes caused different kinds of diseases. -
Koch Particular Germs
Robert Koch (different from Kosh) established that particular germs cause different diseases. -
Nightingale Being Clean
Florence Nightingale concluded that being clean was essential in patient care and reducing infectious diseases. -
Lister Developing 'Antibacterial'
Joseph Lister developed a use of chemicals to help in reducing the spreading of microbes. -
Halsted Protection To Surgery
William Stewart Halsted was the very first to use gloves while performing surgery as a way to prevent the spread of microbes. -
The Approbal of the Germ Theory
When this year came, most of the world had approved this Theory.