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Invention of the Compound Microscope by Hans and Zacharias Janssen (Early 16th Century)

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Invention of the Compound Microscope by Hans and Zacharias Janssen (Early 16th Century)

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Zacharias Janssen observed that when light passed through lenses on either side of a tube, an object on one end is magnified.

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Antonie van Leeuwenhoek starts observing bacteria and human cells (1600s)

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Antonie van Leeuwenhoek starts observing bacteria and human cells (1600s)

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The bacteria or "animalcules" as Leeuwenhoek called them, was discovered by looking at the teeth of people, so he decided to write about it and share his discovery

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Robert Hooke discovers cells in a cork (1665)

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Robert Hooke discovers cells in a cork (1665)

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The term "cells" was actually coined by Robert Hooke when he looked at the cork through his microscope and saw that it looked like Cells, most especially "monk cells", hence it is called "cells"

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He examined a thin slice of cork and saw a multitude of little pore. He described it to have looked like the walled compartments monks used to live in. He called his discovery cells.

Https://www.preceden.com/timelines/46013-contributions-to-cell-theory

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The discovery of plant cells by Matthias Jakob Schleiden (1838)

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The discovery of plant cells by Matthias Jakob Schleiden (1838)

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He used to view and look at many different plants under his microscope until he realized all the plants were made of cells and he was the first to recognize that cells are a fundamental unit of life.
Matthias Schleiden - Cell Theory (weebly.com)

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The discovery of animal cells by Theodor Schwann (1839)

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The discovery of animal cells by Theodor Schwann (1839)

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Like Schleiden before him, Schwann concluded that all tissues are made up of cells following the latter’s discovery of animal cells in 1839.

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Another important finding of Theodor Schwann was pepsin, the first digestive enzyme that was prepared from an animal cell. He then started to work with Schleiden after the discovery.
Theodor Schwann - Cell Theory (weebly.com)

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"All cells come from pre-existing cells"

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Rudolf Virchow theorized that all cells arise from pre-existing cells to lay groundwork for cellular pathology.

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Anton Van Leeuwenhoek discovered a single-celled creature in a drop of pond water in 1675. Without a microscope, these live organisms were minuscule and couldn't be seen. Better microscopes were being developed by 1800.

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1. Babaran, Carl
2. Lagtapon, Miguel
3. Mann, Adesh
4. Osuan, Jesse James
5. Pasumbal, John Daniel
6. Santiago, Elson Harold
7. Santos, Joaquin Christopher
8. Tanjuakio, Karlo Jonah

# data[].attributes.body
1. Babaran, Carl
2. Lagtapon, Miguel
3. Logroño, Jose
4. Mann, Adesh
5. Osuan, Jesse James
6. Pasumbal, John Daniel
7. Santiago, Elson Harold
8. Santos, Joaquin Christopher
9. Tanjuakio, Karlo Jonah