jan 1, 1665 - Antony Van Leeuwenhoek (1660s)
Description:
The first person to study single-celled organisms, he was able to do this with a microscope he built capable of zooming up to 500x. He also studied blood cells, pond water, and scraped matter from his teeth which he called animalcules.
Added to timeline:
Cell Theory Timeline
Science 10
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