FACTOID # 5: China has the most workers, so it's a good thing they've also got the most TV's.
 
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Encyclopedia > 2300s BC
(Redirected from 2300s BC)

(25th century BC - 24th century BC - 23rd century BC - other centuries)


(4th millennium BC - 3rd millennium BC - 2nd millennium BC)


Events



Significant persons

Inventions, discoveries, introductions

Source: [1] (http://www.reshafim.org.il/ad/egypt/timelines/topics/beekeeping.htm) Ancient Egypt: Beekeeping and wax




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Cartography (1411 words)
In 288 BC E Aristarchus of Samos was the first to say that the sun was the center of universe (see heliocentric theory).
The Greeks also developed the science of map projection s, which are methods of representing the curved surface of the earth on a plane.
Eratosthenes, Anaximander, and Hipparchus are credited with developing the concept of longitude and latitude, and Eratosthenes seems to have developed the equirectangular map projection around 200 BC.
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