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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
Women are 50% to 75% more likely than men to experience an adverse drug reaction.
The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.
The horizontal fraction bar was introduced by the Arabs.
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