The development of astronomy implies considerable progress in mathematics; it is not surprising, therefore, that the Babylonians should have invented an extremely simple method of ciphering or have discovered the convenience of the duodecimal system. [Please select]
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They learned to use both the decimal and the duodecimal systems (nowadays we use only the decimal system, which is a great pity). [Please select]
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The division of the circle into degrees, minutes, and seconds (360°, 60', 60") was an invention of the Babylonians which illustrates this duodecimal system A start was made in geometry."' [Please select]
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I say twelve times, for in those days, because of our old duodecimal measures, it was the custom to count as far as the twelve times table, instead of the ten times of the metric system. [Please select]
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