CELL THEORY TIMELINE
2025
Ernst Ruska
Zacharias Janssen
1931
1665
Robert Hooke
Invented the Compound Light
Microscope (50X)
Max Knoll
1673
Anton Van
Leeuwenhoek
Ernst Ruska and Max
Knoll
Designed and invented the
1938
1590
Transmission Electron Microscope
Saw tiny chambers and coined the
(TEM)
term ‘cell’
Termed the microorganisms
Zacharias Janssen
Fritz Zernike
“animalcules”
Hans Lippershey
And Hans Lippershey
Developed the
(4x, 10x, 20x, 40x
to 400x).
Designed and invented the best
Invented the “first Compound
“Simple Microscope”
Microscope” with two lenses. (3X to
9X)