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What Is Cell Theory?
by Marina Cohen
In 1665, scientist Robert Hooke published Micrographia, the first significant work focused on observation through a microscope. Later, Hooke's groundbreaking work inspired scientists such as Theodor Schwann, Matthias Schleiden, and Rudolph Virchow, whose ideas shaped the Cell Theory-the description of the basic unit of life. What is Cell Theory? relates the fascinating sequence of events that led to the development of the fundamental biological principle that shaped modern biology.