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This is the first major publication devoted to microscopical observation. I chose this for that reason and because this is when the term "cell" was coined. -
In this letter, Leeuwenhok concludes that the cells are indeed living organisms. I chose this because this is one of the first leaps into the formation of cell theory. -
Achromatic microscopes allowed more precise histological observations. I chose this because without such an invention many later discoveries couldn't have occured.
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I chose this because this is a large discovery into the way that cells work. Previously, it was just seen as another part. -
Schleiden (botanist) and Schwann (zoologist) both independently proclaim that the organisms in their fields are made of cells. Later, cell theory is officially formed. I chose this because this is the moment when scientist identify a foundation for interacting with cells.
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Scientists such as Robert Remak and Rudolph Virchow disprove the theory that cells spontaneously generate. I chose this because these are the discoveries that formed cell theory as we know it.
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Many new techniques and technologies were developed in order to increase the effectiveness of the microscope. I chose because (once again) without these advances science wouldn't have been able to progress as far. -
This reaction provided a full view of a single nerve cell and its processes for the first time. I chose this because this is one of the first major steps into the formation of neuron theory. -
I chose this because it was the first step in putting a stop to the idea that the nervous system was an exception to cell theory. -
Waldeyer used this term to describe independent nerve cells. I chose this because this marks the point that cell theory was properly applied to the nervous system, forming "neuron theory".