Introduction Cytology is the study of cell structure, while the study of cell structure and function is known as cell biology. Both have played crucial roles in advancing our understanding of life at the microscopic level. This article explores the key milestones in the field of cytology, ...

The Cell Principle, developed from Schwann's cell hypothesis in 1839, was expanded upon by Schleiden and Schwann, eventually leading to the formation of the Cell Theory. Further modifications were made when Rudolf Virchow proposed the theory of cell lineage or the idea that cells come from ...