Discovery's of the cell

the invention of the first microscope

Jan 1, 1595

http://www.smithlifescience.com/celltheory.htmZacharias Jansen discovered the first compound microscope which led on to more people wanting to create more inventions.

Discovery of photosynthesis

Jan 1, 1643

http://www.smithlifescience.com/celltheory.htmIn 1643, Jan Baptista Van Helmont did the first
biological experiment in which all ingredients were measured
accurately and all changes noted precisely. From his
experiment, Van Helmont concluded that a willow tree drew
its nutrients, not from the soil, but from wate

Discovery of cellulae

Jan 1, 1665

http://www.smithlifescience.com/celltheory.htmEnglish Scientist and Microscopist Robert Hooke described a honeycomb-like network of cellulae (Latin for little storage rooms) in cork slice using his primitive compound microscope. Robert Hooke used the term cells to describe units in plant tissue (thick cell walls could be observed).

First person to observe bacteria and protozoa

Jan 1, 1670

http://www.smithlifescience.com/celltheory.htm Anton Vn Leeuwenhoek made his own fine quality lens for use in monocular microscopes and was the first person to observe bacteria and protozoa. Some of his lenses could magnify objects 250X

New system of animal classification

Sep 11, 1802

http://www.timetoast.com/timelines/the-atom-timelineLorenz Oken came up with a new system of animal classification that demonstrated the path of evolution including:Dermatozoa- invertabratesGlossozoa- fish with the first tounguesRhinozoa- reptiles inwhich the nose opens into the mouth and us used for respirationOtozoa- birds with the first externally open earsOphthalmozoa- mammals including all sensory organs

discovery of nucleus

Jan 1, 1833

http://www.smithlifescience.com/celltheory.htm1833: English Botanist Robert Brown discovered the nucleus in plant cells.

embryonic cell discovery

Jan 1, 1839

http://www.smithlifescience.com/celltheory.htmSchwann implemented Matthias Schleiden’s cell theory to animals in 1839, and demonstrated that every mature animal tissue is composed of embryonic cells.

discovery that cells are the basic structure for all organisms

Jan 1, 1839

http://www.smithlifescience.com/celltheory.htmTheodor Schwann Cells are organisms and all organisms consist of one or more cells. 2. The cell is the basic unit of structure for all organisms and that plants and animals consist of combinations of these organisms which are arranged in accordance with definite rules.

Diseases starting place

Jan 1, 1840

http://www.smithlifescience.com/celltheory.htm Rudolf Virchow emphasized that diseases arose, not in organs or tissues in general, but primarily in their individual cells.

sperm and egg cells are also cells

Jan 1, 1840

http://www.smithlifescience.com/celltheory.htmAlbrecht von Roelliker realized that sperm cells and egg cells are also cells.

Pasteurization invention

Jan 1, 1862

http://www.smithlifescience.com/celltheory.htm Louis Pasteur came up with a process to prevent milk and wine from making people sick (Pasteurization) which was based off his work in germ theory. He had proven spontaneous generation false and replaced it biogenesis which states that all living things came from preexisting life. Biogenesis is the basis or Germ Theory which, though not originally his idea, led Pasteur to discover vaccines for Rabies and Anthrax as well as other medical accomplishments.

Experimental approach on dissections

Mar 2, 2022

http://www.timetoast.com/timelines/the-atom-timeline Aristotle Was known for his experimental approach and numerous dissections. He was drawn to animal classification in order to discover aspects of connection between the soul and the human body. Some of his animal classifications still stand tod