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      <title>When &amp; where did math originate? TOK 6 by Anastasia Y</title>
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      <pubDate>2023-11-29 04:40:07 UTC</pubDate>
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         <title>The first recorded 0 appeared in Mesopotamia around 3 B.C.</title>
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         <pubDate>2023-11-29 05:33:17 UTC</pubDate>
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         <title>In about 200 BC the Greek Eratosthenes devised an algorithm for calculating primes called the Sieve of Eratosthenes.</title>
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         <pubDate>2023-11-29 05:36:08 UTC</pubDate>
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         <title>The first irrational number discovered was the square root of 2, by Hippasus of Metapontum (then part of Magna Graecia, southern Italy) around 500 BC.</title>
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         <pubDate>2023-11-29 05:37:08 UTC</pubDate>
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         <title>King Henry I, son of William the Conqueror, assumed the throne of England in 1100 AD, and in an effort to enhance his power, invented a unique money system called the tally stick system.</title>
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         <pubDate>2023-11-29 05:38:03 UTC</pubDate>
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         <title>Egypt</title>
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         <description><![CDATA[<p>在古代，圆的概念最早出现在埃及和巴比伦的数学中。埃及人利用圆的特性进行土地测量和建筑设计，如金字塔的建造。而巴比伦人则利用圆的性质解决了一些实际问题，如计算土地面积和建筑物的高度。</p>]]></description>
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         <title>希腊</title>
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         <title>伊拉克巴比伦</title>
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         <pubDate>2023-11-29 05:40:32 UTC</pubDate>
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         <title>Xilagani, 希腊</title>
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         <description><![CDATA[<p>三角函数</p>]]></description>
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         <title>伊拉克美索不达米亚</title>
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         <description><![CDATA[<p>0的起源地</p>]]></description>
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