The History of Arabic Numerals
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16:27
Why the number 0 was banned for 1500 years
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13:01
The Change from Roman Numerals - Numberphile
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21:40
The Origins of Arabic
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18:38
What is the Kaaba?
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16:15
THE ALPHABET EXPLAINED: The origin of every letter
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13:30
Neil deGrasse Tyson Explains Zero
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10:03
Why Are There UPPERCASE and lowercase Letters?
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10:48