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In 1674, Anton van Leeuwenhoek discovered bacteria building up on his teeth. Leeuwenhoek examined the bacteria using a single-lensed microscope that he created. While Leeuwenhoek was examining bacteria, he thought they looked like animals. So he called them animalcules.
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.