The horizontal fraction bar was introduced by the Arabs.
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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
Portuguese Warrior Surrounded by Manillas, Court of Benin, Nigeria.
Many U.S. regions under threat due to changes in sea level
The Nile Delta will be strongly affected by a rise in sea level of 50 cm
World Mean Sea-Level Temperatures in January
A Drug’s Plateau Level
The Kite String Tangle - Tennis Court (Lyrics video)