-
200
Ancient Egyptians
The ancient egyptians from around 1500BC were already studying the anatomy of the human body due to their practice of mummification. As the Egyptians removed key organs from the mummy to be they would study them and learn facts on how they each worked. their first principle was that the human body is made up of many components that all work togther. -
Jan 1, 1000
Medieval Europeans
By the medieval times the Europeans had begun to develop an interest in biological attributes. Due to much of the world was agriculture based questions were being asked on the scientific nature of life. -
Jan 1, 1543
Andreas Vesalius
Andreas had large affect on cell theory development when he published his work in a book 'The Fabrica' a study on the human anatomy this book was considered the first book in the world on anatomy. He would study through dissecting dead human bodies and cadavers.His discoveries helped show how cells in the body formed to create complex organs -
Hans and Zacharias Janssen
These two men were the creators of the first microscope in the 1590s (the fact is debatable on who first created it) This design was later on improved which lead to the first citing of a cell. -
Robert Hooke
Robert Hooke was studing plants when he discovered that plants comprimised of similar boxes when he was studying fossil wood. He named these Box cells. He wrote a book of his discoveres called Micrograophia. -
Franceso Redi
Franceso Redi is the creator of the famous quote All life comes from an egg, the quote describes the 3rd principle of cell theory.
He performed an Expirement by leaving a piece of meat in a jar and one left out. In this expirement the maggots are only on the uncovered piece of meat showing that the maggots do not come out of thin air. -
Anton Van Leeuwenhoek
Anton was the inventor of the microscopic lens that was capable of magnifying an object over 270 percent. Then he used his microscope to make major biological discoveries. He was considered the Father of microbiology. -
Lazzaro Spallanzani
Lazzaro disproved John Needham's finding about spontaneous generation. His corrected the expirement and found that spontaneous generation is false the third principle of cell theory. -
Jean Baptiste Lamark
Was a Zooligist who discovered that cells and animals adapt to the climate and the environment the thrid principle of cell theory. -
Robert Brown
Robert brown was a scottish botanist who discovered and named the nucelus while studying plants with a microscope -
Theodor Schwann
n 1837 he developed the cell theory, with the help of other scientists, which summarized his findings and the findings of many other scientists over the centuries. He had previously discovered that cells do not spontaneously appearm, not for the first time yet solidifying past claims, thus leading to the formation of the third principle of the cell theory. His greatest contribution however was the organization of all of the scientific findings of cells into the cell theory. -
Matthias Schleiden
Worked with Schwann to help discover cell theory, also work on discovering the conponenets of the nucleus. Also having detailed observations of plant development on a cellular level. -
Louis Pasteur
Pasteur is famous for his invention of pasteurization, however he is also known for other accomplishments. Pasteur helped to disprove spontaneous generation, thus proving the third principle of the cell theory yet again. His discoveries led him to create the theory of biogenesis, which states that all life comes from preexisting life. Biogenesis sums up the third principle of the cell theory. -
Aristotle
Aristotle was a greek philosopher around 384.BC his contributions to cell theory were his studies through his many dissections and his rudimentary classifications of living things. He discovers that in different species there are connections between every organism. This is the first principle of cell theory that all living things are made of cells.