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Did you know?
Illicit drug use costs the United States approximately $181 billion every year.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
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?
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Did you know?
Thyroid conditions may make getting pregnant impossible.