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Hans and Zacharias Janssen
Hans and Zacharias Janssen contributed to the cell theory by inventing the first compound microscope which made cell discovery much easier. -
Robert Hooke
Hooke first discovered pores on a silver of cork and when he did he mentioned that they looked like cellula or small rooms that monks inhabited and therefore gave it the name cells. Essentially, he first discovered cells. -
Anton Van Leeuwenhoek
Anton Van Leeuwenhoek was the first person to discover bacteria and protozoa.
