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330
Aristotle
Aristotle invented the field of formal logic around 330 B.C -
Zacharius Jansen
Jansen invented the compund microscope that observing cells for the cell theory. -
Jan Baptist van Helmont
Jan Baptist van Helmont discovered photosynthesis in the 1600's -
Robert Hooke
Hooke discoverd plant cells and also name them. -
Anton van Leeuwenhoek
He invented a microscope that contained lenses that could magnify objects 300 or 270. -
Lorenz Oken
He elaborated Wolfgang von Goethe’s theory that the vertebrate skull formed gradually from the fusion of vertebrae. -
Robert Brown
Brown discoverd the nucleus of a cell and created the Brownian Motion. -
Theodore Schwann
Theodore Schwann developed the cell theory to animals and discovered all tissues are made of cells. -
Matthias Schleiden
Schleiden was a co-founder of cell theory. He defined the cell as the basic unit of plant structure, and a year later Schwann defined the cell as the basic unit of animal structure. -
Albrecht von Roelliker
He discovered through the help of powerful microscopes that the sperm and egg were composed of cells and that humans are formed of cells from beginning to end. -
Rudolf Virchow
Virchow discoverd cells originated from cells. -
Louis Pasteur
Pasteur invented pasteuriztion.
