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In 1665, an Englishman named Robert Hooke (1635-1703) published Micrographia: or Some Physiological Descriptions of Minute Bodies Made by Magnifying Glasses coining the word “cell” for the first time in relation to biology in his description of magnified cork shavings. About what he saw, he wrote “… it was not unlike Honey-comb…in that these pores, or cells, were not very deep, but consisted of a great many little boxes..." These were not live cells but the remains of the plant cell walls.
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The voyage lasted almost 5 years, ending on October 2, 1836.
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He wrote that all plant cells are made of multiple cells and originate from single cells. He suggested that cells are the basic building block of all plant matter.
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Published “omnis cellula e cellula” (all cells from cells) in 1858. The observations of Matthias Schleiden, Theodor Schwann, and Virchow become the basis of "Cell Theory." The theory states that cells are the basic unit of life, and all living things are composed of cells derived from previous cells, or that life does not appear by spontaneous generation.
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By the year 2030 there will be no more wild Tigers. They will all be either kept in zoos or somehow domesticated.