Cell Theory


Anton van Leeuwenhoek

October 24 1632 - August 26 1723

Robert Hooke

July 28 1635 - March 3 1703

Matthias Schleiden

April 5 1804 - June 23 1881

Theordor Schwan

December 7 1810 - January 11 1882

Rudolph Virchow

October 13 1821 - September 5 1902

Robert Hooke's Contributions

Robert Hooke Observes Slices of Cork.

January 1663

This leads to Robert Hooke discovering cells.

Robert Hooke's Book "Micrographia" is publised.

September 1665

Anton van Leeuwenhoek's Contributions

Anton van Leeuwenhoek Describes Cells for the First Time.


Anton van Leeuwenhoek uses a simple microscope with only one lens to look at blood, insects and many other objects. He was first to describe cells and bacteria, seen through his very small microscopes with, for his time, extremely good lenses.

Anton van Leeuwenhoek Observes Pond Scum Under a Microscope.

December 1673

Antonie van Leeuwenhoek Observes Living Cells.


He does this in the form of algae and protists and sperm.

Anton van Leeuwenhoek Discovers Bacteria


He does this by analyzing a sample of saliva and plaque he took from his, his wife's, daughter's, and another man's mouth.

Matthias Shleiden's Contributions

Matthias Shleiden Develops Cell Theory Along With Theordor Schwan.


Matthias Shleiden Discovers That Plants Are Made Up of Cells.


Matthias Shleiden Writes “Contributions to Phytogenesis”.


He stated that the different parts of plants are all made up of cells or derivatives of cells.

Theordor Schwan's Contributions

Theordor Schwan Develops Cell Theory Along With Matthias Shleiden.


Theordor Schwan Discovers That Animals Are Made of Cells.


Rudolph Virchow's Contributions

Rudolph Virchow States That All Cells Come From Other Cells