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Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
Did you know?
There are more bacteria in your mouth than there are people in the world.
Did you know?
The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
Did you know?
The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.