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Zacharias Janssen
(Circa 1590's) Zacharias Janssen, a lens grinder, made a 2 lense microscope which sparked the evolution of the microscope. This lead to Robert Hooke's invention. -
Francesco Redi
(Circa 1600's) Francesco Redi was an Italian physician, naturalist, and poet. He was the first scientist to challenge the theory of spontaneous generation by demonstrating that maggots come from eggs of flies. -
Robert Hooke
(Circa 1665) Robert Hooke was an English physicist looked at a sliver of cork through a microscope lens and noticed some "pores" or "cells" in it. -
Anton van Leeuwenhoek
(Circa 1674) Leeuwenhoek made the first major discovery in the cell world. Anton looked under his simple microscope and looked at some drops in a pond. Anton found tiny living organisms in the drops. He had discovered the cell. -
Robert Brown
(Circa 1831) Robert Brown was a Scottish botanist who discovered something that became very useful in the further discovery in plant and animal cells. He discovered nucleus ( a small dense, round body in the body in the cell). -
Matthias Schleiden
(Circa 1838) Matthias Schleiden was a German botanist and co-founder of the cell theory. He helped concluded a specific part to the cell theory. He concluded that all plants are made up of cells. -
Theodore Schwann
(Circa 1839) A German botonist cincluded the cell theory. The cell theory states: 1 - Cells are organisms and all organisms consist of one or more cells 2 - The cell is the basic unit of structure for all organisms -
Rudolph Virchow
(Circa 1855) Rudolph Virchow a German doctor, anthropologist, pathologist, prehistorian, biologist, writer, editor, and politician, Concluded a very important thoery. He concluded that all living cells only come from other living cells. -
Robert Remak
(Circa 1855)Remak experimented with many chemicals before finding that a mixture of copper sulfate, vinegar, and alcohol worked to make the cell membrane. As a result, Remak substantiated the existence of the cell membrane. -
Charles Darwin
(Circa 1859) Charles Darwin a English Biologist, Wrote a book called “On the Origin of Species,” which explained units of heredity and variations in species inside cells. -
Gregor Mendal
(Circa 1865)Gregor Mendall was a German-speaking Silesian scientist and who gained fame as the founder of the new science of genetics, by showing his theories on hereditary called Mendal's laws. Which state:Mendel's first law is "Segregation of Characteristics.";This says that of a pair of characteristics only one can be represented in a gamete. Mendel's Second Law is the law of "Independent Assortment". This says that for two characteristics the genes are inherited independently. -
Camillo Golgi
(Circa 1898) Camillo Golgi created a lab in a small kitchen in which Golgi invented a method of staining by hardening nervous cells in potassium bichromate and then inserting the material with silver nitrate. This system was called the internal reticular apparatus which was later named the Golgi Apparatus.
