Discovery of Microbes
1674-Antoni van Leeuwenhoek
- amateur lens grinder: saw “animalcules”
Generation of Life
- Spontaneous generation: non-living substances converted into living organisms (abiogenesis)
- Biogenesis- states “Life from Life”
- Lazzaro Spallanzani (1765): boiled beef broth
- Pasteur (swan necked flasks)