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( 21st century BC - 20th century BC - 19th century BC - other centuries)( 3rd millennium BC - 2nd millennium BC - 1st millennium BC)
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3 Inventions, discoveries, introductions
- 1950 BC -- The copper bar cubit of NippurThe city of Nippur ( Sumerian Nibru Akkadian Nibbur was one of the most ancient of all the Babylonian cities of which we have any knowledge, the special seat of the worship of the Sumerian god, Enlil, ruler of the cosmos subject to An alone. Indeed, in Su defines the Sumerian cubitFor the unit of information, see qubit Cubit is the name for the ancient Egyptian and Sumerian units of measure. These Cubits are among the first recorded units of length used by an ancient people. From around 1950 BC, the copper bar cubit of Nippur defin as 51.72 cmTo help compare different orders of magnitude this page lists lengths between 10-1 m and 1 m (10 cm and 1 m). See also lengths of other orders of magnitude. Shorter lengths 10 cm is equal to 1 decimetre, 100 millimetres, 3. 9 inches, width of square of ar
20th century BC21st century BC 20th century BC 19th century BC other centuries) ( 3rd millennium BC 2nd millennium BC 1st millennium BC) Events 2064 1986 BC Twin Dynasty wars in Egypt 1991 BC Egypt: End of Eleventh Dynasty, start of Twelfth Dynasty 1932 BC Amorite conqu
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