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Anton van Leeuwenhoek
Anton van Leeuwenhoek described cells in a drop of pond water using a microscope. He also was the first person to give a detailed description of red blood cells, sperm, bacteria and protozoa. -
Robert Hook
Rober Hook in 1663, discovered calls in cork which he examined under his microscope. Also he observed cells dividing under microscopes. -
Jakob Schleiden
Thus, Schleiden became the first to formulate what was then an informal belief as a principle of biology equal in importance to the atomic theory of chemistry. He ... recognised the importance of the cell nucleus , discovered in 1831 by the Scottish botanist Robert Brown , and sensed its connection with cell division . -
Theodor Schwann
discovered that animals were made up of cells. -
Rudolph Carl Virchow
Rudolph Ludwig Karl Virchow- 1855 Virchow’s most widely known contribution was that he found new cells could be produced only from division of existing cells. Rudolph Virchow suggested that all cells come from pre-existing cells. He stated that all living things come from other living things. -
Robert Brown
1773-1858 Scottish botanist Robert Brown revolutionized cell theory with his discovery of the nuclei in many different types of plant tissue. He observed one "nucleus" in each cell.
