Why do we call them "Piggy Banks"?

This entry is part 37 of 40 in the series Deep Questions

No one invented the piggy bank. The piggy banks’ origin owes more to the history of language, than to an individual inventor. In old english (around the 15th century) there was a word “pygg” which referred to a type of orange clay. People made all kinds of useful objects out of clay, including dishes and jars to hold spare change. Around the 18th century, the word “pygg” now sounded the same as the word for the animal “pig”. An unknown person(s) thought to shape a “pygg” jar, to look just like a real “pig”. Perhaps an order came in for a “pygg” jar and the potter misunderstood.

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How many murders go unsolved each year in the U.S.?

This entry is part 38 of 40 in the series Deep Questions

DNA. Carpet fibers. Fingerprints. Given the wealth of forensic information, you’d think police would solve each and every murder. Unfortunately, you’d be wrong. According to the Federal Bureau of Investigation, in 2004, 62.6% of homicides were “cleared,” leaving a substantial portion of murder cases unresolved.

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