Contributions of Ancient Mesopotamia
1. A professional army• Before the Sumerian Civilization,
professional armies did not exist
• Soldiers were farmers and workers, and armies were only formed when needed
• Their understanding and use of militarytactics, if they had any at all, were verybasic
• After a battle or war, the soldiers wentback to their normal jobs
• The Sumerian Civilization was the first to use a professional standing army
• The first professional army was createdsometime between 2600 and 2300 BCE
Advantages and disadvantages?
2. A written language• The first written language as created by
the Sumerian Civilization around the same time that it created a professionalarmy
Advantages and disadvantages?
3. The Wheel• The first wheels were created by the
Sumerian Civilization around the sametime of their professional army and written language
Advantages and Disadvantages?
4. A Circle with 360o
• Our numeric system is based on the number 10
• But the Babylonians based theirs on 60
Advantages and disadvantages?
Factors of 10
101 102 5
Factors of 60
601 602 103 4 5 6 12 15 20 30
• one hour can be divided evenly into sections of 30 minutes, 20 minutes, 15 minutes, 12 minutes, 10 minutes, 6 minutes, 5 minutes, 4 minutes, 3 minutes, 2 minutes, and 1 minute
• 60 is the smallest number that is divisible by every number from 1 to 6
• that is, it is the lowest common multiple of 1, 2, 3, 4, 5, and 6
• The Babylonians observed that one yearis equal to roughly 360 days
• Because they already based theirnumeric system on 60, they decided to have 360o in a circle
• 360 is a _________ of 60
• The Babylonians observed that one yearis equal to roughly 360 days
• Because they already based theirnumeric system on 60, they decided to have 360o in a circle
• 360 is a multiple of 60
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