Cell History timeline
(1665-1970)
1665
First Cell observed Robert Hooke is an English scientist who discovered a honeycomb-like structure in a cork slice using a primitive compound microscope. He only saw cell walls as this was dead tissue. He labeled them as the term "cells".
First Cell observed Robert Hooke is an English scientist who discovered a honeycomb-like structure in a cork slice using a primitive compound microscope. He only saw cell walls as this was dead tissue. He labeled them as the term "cells".
1670
First living cells seen
Anton van Leeuwenhoek is a Dutch biologist who looked at pond water through a microscope he made lenses for.
First living cells seen
Anton van Leeuwenhoek is a Dutch biologist who looked at pond water through a microscope he made lenses for.
1683
Miniature animals
Anton van Leeuwenhoek had many others discoveries with the microscope such as the first protozoa and bacteria.
Miniature animals
Anton van Leeuwenhoek had many others discoveries with the microscope such as the first protozoa and bacteria.
1833
The center of the cell seen
Robert Brown, an English botanist, discovered the nucleus in plant cells.
The center of the cell seen
Robert Brown, an English botanist, discovered the nucleus in plant cells.
1838
Basic building blocks
Matthias Jakob Schleiden, a German botanist, concluded that all plant tissues are made of cells, and that cells are the basic building blocks of all plants.
Basic building blocks
Matthias Jakob Schleiden, a German botanist, concluded that all plant tissues are made of cells, and that cells are the basic building blocks of all plants.
1839
Cell theory
Theodor Schwann, a German botanist who determined that not only plants, but animal tissue was also composed of cells.
Cell theory
Theodor Schwann, a German botanist who determined that not only plants, but animal tissue was also composed of cells.
1840
Where does life come from
Albrecht von Kolliker discoveres that sperm and eggs are also cells.
Where does life come from
Albrecht von Kolliker discoveres that sperm and eggs are also cells.
1845
Basic unit of life
Carl Heinrich Braun changed the cell theory defining cells as the basic unit of life.
Basic unit of life
Carl Heinrich Braun changed the cell theory defining cells as the basic unit of life.
1855
3rd part to the cell theory added
Rudolf Virchow, a German physiologist/physician/pathologist added the 3rd part to the cell theory. He proposed that all cells come from existing cells. He also was the first to propose that diseased cells come from healthy cells.
3rd part to the cell theory added
Rudolf Virchow, a German physiologist/physician/pathologist added the 3rd part to the cell theory. He proposed that all cells come from existing cells. He also was the first to propose that diseased cells come from healthy cells.
1931
Cell Membrane
Janet Plowe proved that the cell membrane is an actual structure.
Cell Membrane
Janet Plowe proved that the cell membrane is an actual structure.
1970
Free Living Cells
Lynn Margulis suggests that organelles were once free living creatures on their own.
Free Living Cells
Lynn Margulis suggests that organelles were once free living creatures on their own.
Image Credits
http://www.nndb.com/people/355/000087094/
http://www.abc.net.au/navigators/naturalists/brown.htm
http://biology.clc.uc.edu/fankhauser/labs/microbiology/History_of_Germ_Theory.htm
http://www.fotosimagenes.org/matthias-jakob-schleiden
http://en.wikipedia.org/wiki/Albert_von_K%C3%B6lliker
http://www.britannica.com/EBchecked/media/22630/Alexander-Braun-engraving-by-Weger-1875
http://en.wikipedia.org/wiki/Rudolf_Virchow
https://www.ironmountaindailynews.com/page/content.detail/id/533538/Jannett-Snodie.html?nav=5003
http://sites.roosevelt.edu/mbryson/2011/11/27/lynn-margulis-influential-evolutionary-biologist-dies-at-age-73/
http://www.nndb.com/people/355/000087094/
http://www.abc.net.au/navigators/naturalists/brown.htm
http://biology.clc.uc.edu/fankhauser/labs/microbiology/History_of_Germ_Theory.htm
http://www.fotosimagenes.org/matthias-jakob-schleiden
http://en.wikipedia.org/wiki/Albert_von_K%C3%B6lliker
http://www.britannica.com/EBchecked/media/22630/Alexander-Braun-engraving-by-Weger-1875
http://en.wikipedia.org/wiki/Rudolf_Virchow
https://www.ironmountaindailynews.com/page/content.detail/id/533538/Jannett-Snodie.html?nav=5003
http://sites.roosevelt.edu/mbryson/2011/11/27/lynn-margulis-influential-evolutionary-biologist-dies-at-age-73/