RUDE NUMBERS

The first abacus was invented because fingers got tired of overtime.

✗ FAKE

The abacus is an ancient counting tool, and versions appeared in Mesopotamia, Greece, Rome and China. Its inventor is unknown.

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The concept of “proof” was invented because nobody trusted anyone. Math is basically receipts.Archimedes is considered one of the greatest mathematicians of all time— the original “Eureka!” guy.The concept of “distance” was invented by people avoiding each other politely.A perfect number is a number that is equal to the sum of its proper divisors, such as 28 — perfection defined through math, not personality.The number 1 is so confident it doesn’t even have plural problems.Percentages were invented to make discounts sound sexier than they are.See all Rude Numbers facts →

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