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Did you know?
In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
Did you know?
Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.
Did you know?
The average adult has about 21 square feet of skin.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.