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100

used moldy bread to treat wounds 

Egyptians 
100

heliocentric theory 

Galileo 

200

3 laws of motion 

Newton

200

living organisms spontaneously form from non-living organisms 

spontaneous generation 

300

first microscope, microorganisms 

Leeuwenhoek

300

founder of modern chemistry 

Boyle 

400

germ theory, pasteurization 

Pasteur 

400

invented papyrus 

Egyptians 

500

Father of Modern Genetics 

Mendel 

500

theory of evolution 

Darwin