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Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Did you know?
To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.
Did you know?
Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.