Results for 21st century BC
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Sci & Tech Chronology: In the year

2100 bce

Construction

Ur-Nammu disposes of rivals and rules from the city of Ur (Iraq), becoming the last great ruler of Sumer. He is known for rebuilding the cities and canals, as well as constructing a ziggurat (temple tower) that rises 21 m (70 ft) with a base 60 m (200 ft) wide. See also 2335 bce Archaeology.

The megaron house that becomes the model for much of the housing around the Mediterranean is developed, as revealed by excavations at the lowest level of Troy (Hissarlik, Turkey). A columned porch leads into a narrow hall that passes into the large main room (megaron). Later developments in Greece include another small room behind the megaron for sleeping or storage and a circular hearth. See also 2500 bce Construction.

Mathematics

The oldest preserved standard for length is the foot of the statue of the ruler Gudea of Lagash. It is divided in 16 parts and is 26.45 c (10.41 in.) long. See also 2400 bce Mathematics.

Medicine & health

The oldest medical text that has been preserved in its original form is a cuneiform tablet that lists a sequence of recipes for various external poultices and plasters. See also 2000 bce Medicine & health.


 
 
Wikipedia: 21st century BC
Millennium: 3rd millennium BC
Centuries: 22nd century BC - 21st century BC - 20th century BC
Decades: 2090s BC 2080s BC 2070s BC 2060s BC 2050s BC
2040s BC 2030s BC 2020s BC 2010s BC 2000s BC
Categories: Births - Deaths
Establishments - Disestablishments

Events

Ur seen across the Royal tombs, with the Great Ziggurat in the background, January 17 2004
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Ur seen across the Royal tombs, with the Great Ziggurat in the background, January 17 2004


Significant persons

Births

Inventions, discoveries, introductions

Decades and Years


 
 

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Copyrights:

Sci & Tech Chronology. History of Science and Technology, edited by Bryan Bunch and Alexander Hellemans. Copyright © 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.  Read more
Wikipedia. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "21st century BC" Read more

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