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Period: 650 BCE to 600 BCE
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5 BCE
Test 11
The abacus (plural abaci or abacuses), also called a counting frame, is a calculating tool that was in use in the ancient Near East, Europe, China, and Russia, centuries before the adoption of the written Arabic numeral system.[1] The exact origin of the abacus is still unknown. The abacus essentially consists of a number of rows of movable beads or other objects, which represent digits. One of two numbers is set up, Link -
Jan 1, 1500
Test 2
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Test 3
dasdfsf alflkfajd a;kfdjlskdjf sdflkjsdflkjsdf
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Test 13
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Test 10
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Test 12
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Test 8
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Test 16
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Test 9
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Test 15
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Test 14
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Test 3
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Test 4
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Test 5
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Test 6
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Test 7
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Test 12
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Test 16
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Test 17
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Test 18
Here is my description Link