The Cell Theory Timeline – Timeline Help

The cell theory timeline from 1590 to 1765 at Timeline Help.

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1590


1665

 

-1668

 

-1674

 

-1745

 

-1759


1765

 

Zacharias and Hans Janssen invent the world’s first compound microscope.

Robert Hooke of England looks through a microscope at a sliver of cork. He notices what he calls cells or pores. He believes the cells contained the noble juices or fibrous threads of the tree when it was alive. He is the first person to use the word cellto describe microscopic structures.

An Italian physician, Francesco Redi, performed an experiment to see if rotting meat changed into flies. He discovered that only flies to could make more flies, thus disproving the theory of spontaneous generation.

Anton Van Leeuwenhoek, of Holland, used microscopes to view many things including pond organisms, bacteria and blood cells. He made careful sketches of what he observed.

John Needham, a naturalist and clergyman in Scotland, discovered that soup that had been exposed to the air contained micro organisms. He theorized that a life force was present in all inorganic matter including air and oxygen that could cause spontaneous generation.

C. F. Wolff of Germany comes up with a generalized cell theory.

Lazzaro Spallanzani, a biologist and abbot in Italy tried several variations on the experiments done by John Needham. He discovered that soup that was kept sealed did not contain the micro organisms that appeared in soup open to the air. He determined that micro organisms get into the soup from the air.

 

Bibliography of the Cell Theory Timeline

Harrison, L G (2008). Kinetic Theory of Living Pattern. Developmental and Cell Biology Series.
Meyer, S C (2009). Signature in the Cell. DNA and the Evidence for Intelligent Design.
Ehsani, M, Gao, Y and Emadi, A (2009). Modern Electric, Hybrid Electric, and Fuel Cell Vehicles. Fundamentals, Theory, and Design.
McGaugh, J L, Weinberger, N and Lynch, G (1992). Brain Organization and Memory. Cells, Systems, and Circuits.

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