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In 1590 Dutch lens makers Zaccharias and Hans Janssen invented the first microscope.(No Specific Date Was Found Only The Year)
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English physicist Robert Hooke observes a sliver of cork through a microscope and notices cells and pores
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Anton van Leeuwenhoek builds a simple microscope to examine blood yeast, insects, and many other tiny objects.He was also the first person ever to describe bacteria.He also invented new methods for grinding and polishing lenses that magnified up to 270 times. These lenses were the best at the time.
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Technical innovations improve microscopes.At this time microscopy becomes popular among scientists.
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Matthias Schleiden observes plants and states that all plants are made of cells
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After investigation after investigation, Theodor Schwan states that animals are made of cells. Theodor Schwan and Mathias Schleiden are both contributors to the cell theory.
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"All living things arise from pre-existing cells." This statement has become known as the biogenic law. Rudolf Virchow discovers that all living things come from pre-existing cells.
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Richard Zsigmondy invents the Ultra- microscope that is able to study objects below the wavelength of light. He later won the Nobel Prize in Chemistry in 1925.
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An electron microscope is a type of microscope that uses electrons to create a three dimensional image. This microscope was co-invented by Ernst Ruska.
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Gerd Binnig and Heinrich Rohrer invent the scanning tunneling microscope. This microscope gives a three dimensional image of the specimen.
