-
330 BCE
Aristotle created epigenesis
Aristotle articulated principles of generation to account for the theory that developing organisms go through a series of stages before acquiring their final form, a theory later called epigenesis -
First compound microscope was invented by Zacharias Janssen
This changed the way of life. Living bacteria, organisms, and illnesses were seen in or on our water, food, and everyday items. This also created a new debate across the world. -
Jean Baptist van Helmont contributed to Photosynthesis
Jean studied some theories of the German-Swiss physician, Paracelsus. He came to understand photosynthesis -
Robert Hooke discovered plant cells
After looking at cork under a microscope he had discovered what plant cells look like. -
Anton van Leeuwenhoek came up with the name for animalcules
Anton van Leeuwenhoek observed an abundant number of single-celled organisms, which he called animalcules (plant & animal), swimming in a drop of pond water!Oct 12, 2015 -
s33s Lorenz Oken made a game changing statement
Came up with the statement, "All living organisms originate from and consist of cells" This could have been the first statement of a cell theory. -
Robert Brown made a big discovery
He discovered that the nucleus and its role helped to put together the cell theory, which states that all living organisms are composed of cells, and cells come from pre-existing cells. -
Theodor Schwann coined the term Cell Theory
Later, Theodor moved on to publish his monograph of Microscopic Researches into Accordance, showing the growth of plants and animals. -
Albrecht von Roelliker proposed the cell theory
-
Matthias Schleiden confounded the cell theory
Matthias Schleiden and his friend came up with the cell theory together -
Rudolf Virchow was one of the first
Rudolf Virchow was one of the first men to accept the work of Robert Remak, who showed that the origin of cells was the division of pre-existing cells. Virchow's cellular theory was encapsulated in the epigram Omnis cellula. -
Louis Pasteur invented pasteurization
He disapproved spontaneous generation and figured out how to preserve food and keep people from getting sick. -
Jean Baptist helped understand photosynthesis a little better
Jean discovered that mass of the entire plant was far more than the weight of the displaced original pounds of soil. He discovered the major photosynthesis equation, 6CO2 + 12H2O + light energy ----> C6H12O6 + 6O2 + 6H2O.