• Pythagoras proposed the Earth was round and not flat around 500 BC Copernicus told us the world was not the center of the universe in the mid-1500s. Galileo was condemned by the Catholic Church for defending Copernicus over one hundred years later. Anton van Leeuwenhoek gave us the gift of seeing microorganisms (thank him for cooties) in the late 1600s Later germs were reinforced by Louis Pasteur (1860s) shortly after Darwin introduced the…

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