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Biology is born
Alcmaeon is the first scientist to make contributions to Biology and the first to practice dissection. In the course of his researches he makes the first scientific discoveries in the field of anatomy. Aristotle inaugurates scientific zoology. He is also a pioneer in attempting a system of classification. First one to hypothesize about evolution. In 300 BC Theophrastus first attempts to classify plants, as well as describing their structure, habits and uses.. -
Galen's dissection of apes and pigs give him the detailed information about the organs of the body. Galen is able to demonstrate that living arteries contain blood
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Cesalpino classifies plants according to their fruits and flowers
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Invents the 1st compound microscope
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extends Cesalpino's work in two books and devises method for classifying plants. The main significance of his work is that he is the first to arrange plants in separate groups, or genera. These two levels of classification eventually become standardized as the genus and the species
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First scientist to describe Cells
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provides first sytematic classification of animals
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Published his book on the the origin of species
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First scientist to discover DNA
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Proposed the structure of DNA. A double helix model
