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Did you know?
The horizontal fraction bar was introduced by the Arabs.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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The average office desk has 400 times more bacteria on it than a toilet.
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More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.