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Antonie van Leeuwenhoek was known for his contribution to microscopes and he made some of the first microscopes and in that process he needed to make lenses so While running his draper shop, Van Leeuwenhoek wanted to see the quality of the thread better than what was possible using the magnifying lenses of the time. He developed an interest in lensmaking, although few records exist of his early activity. By placing the middle of a small rod of soda lime glass in a hot flame, one can pull the hot section apart to create two long whiskers of glass. Then, by reinserting the end of one whisker into the flame, a very small, high-quality glass lens is created and he use those lenses to view the thread, making a primitive microscope