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In 1265 Roger Bacon describes the scientific method.
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Zacharias Jannsen and his father create the first compound microscope.
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William Gilbert discovers the Earth's magnetic field.
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Galileo Galilei looks at the moon and discovers details such as craters and ravines.
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Rene Descartes discovers the scientifc method.
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Jam Swammerdam is the first person to observe red blood cells and the first to use a microscope for dissections.
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The mercury barometer is invented.
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Christiaan Huygens discovers Saturn and its rings.
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Robert Hooke introduces the term "cells" which is the basic unit of all life.
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Felice Fontana discovers water gas shift reaction.
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Robert Brown discovers nucleus and helps discover cell theory.
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Rudloph Virchow discovers pracice of medicine.