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Hans and Zacharias Jansen 1590
Invented the compound microscope (two lenses within a tube) -
Robert Hooke 1665
Saw the 1st cell while looking at a cork tree using a microscope. Gave “cells” their name -
Anton Van Leeuwenhoek 1670
1st scientist to observe one celled organisms (such as bacteria) using pond water & teeth scrapings -
Mathias Schleidan 1838
Discovered that plant tissues are made of cells. All plants are made of plant cells! -
Theodore Schwann 1839
Discovered that animal tissues are made of cells. All animals are made of animal cells! -
francesco redi 1850
Used rotten meat to discover cells do NOT spontaneously pop up! Cells come from cells -
Rudolf Virchow 1858
Observed cells dividing, which led to the 3rd part of the cell theory: “Cells come from pre-existing cells” -
Francis Crick and James Watson 1952
Made the 1st model of DNA, proving genes are hereditary