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Compound Microscope
Hans and Zacharias Jansen using two convex lenses created the world's first compound microscope. -
First Observation
An English scientist called Robert Hooke examined a cork slice under compound microscope. He described the cork as porous, like a honeycombe and that the pores or cells contained multiple little boxes. -
Spontaneous Generation
Francesco Redi disproved the theory of spontaneous generation. Redi showed that meat cannot develop into flies and that only flies can make more flies. -
Animalcules
Anton van Leeuwenhoek (a Dutch scientist) used his microscope to examine pond water. He described the unicellular organisms that he could see as 'animalcules'. -
Protoza and Bacteria
Anton van Leeuwenhoek continued to use his microsope to examine cells. He submitted a letter to the Royal Society. He discovered the first Protoza and Bacteria in this letter. -
Nucleus
The Nucleus of plant cless was discovered by English botanist Robert Brown -
First Statement
German botanist Matthias Schleiden proposed that plant tissue is made up of cells and that cells are the basic building blocks of all plants. -
Cell Theory of Life
Theodor Schwann with Matthias Schleiden created the cell theory of life. He proposed that all living things are made up of cells. -
The Last Rule
Rudolph Virchow added the last rule to cell theory.That all cells develop from existing cells. He also proposed that diseses cells caome from healty cells -
Louis Pasteur
An experiment was conducted by Louis Pasteur. Pasteur came to the conclusion that soup in a container with an S shaped neck did not contain micro organisms because the organisms developed in the neck of the S. -
Micro Organisms
Lazzaro Spallanzani, an Italian abbot and botanist, discovered that soup that was not exposed to the air did not contain micro organisms. He proposed that these micro orgainisms came from the air.
