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Zacharias Janssen invented the telescope
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Robert Hooke discovered plant cells
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Anton Leewenhoek was the first ever to observe a single celled organism through a microscope
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Matthias Schleiden declared that the cell is the basic building block of all plant matter
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Theodore Schwann devolped cell theory
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Rudolph Virchow proved cell theory applied to diseased tissue
Plan projects on a visual timeline
Map milestones, phases, deadlines, and key events in one place so the sequence is easier to see and share. Timetoast is a timeline maker for work, school, research, and stories.