21 oct 1676 año - Anton van Leeuwenhoek
Descripción:
Anton van Leeuwenhoek built and improved microscopes. While observing pond water he discovered single-celled organisms that he called animalcules. He also was one of the first people to observe bacteria cells. This contributed to the cell theory by discovering organisms with one cell.
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fecha:
21 oct 1676 año
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~ 347 years ago