During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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Everyone has one nostril that is larger than the other.
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Your heart beats over 36 million times a year.
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The horizontal fraction bar was introduced by the Arabs.
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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.
