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Hans and Zacharias Janssen created the first microscope
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discovered the cell
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discovered cells in animals
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discovered cells in plants
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discovered that animal parts are made of cells
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discovered that animal parts are made of cellsTheodor Schwann
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German physician stated that all living cells come only from other living cells
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.