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With that longstanding question finally solved, people are now turning their attention to the baby bows on bras. Strangely enough, the answer in this case is totally different.
From M&S to Primark, Calvin Klein and beyond - you'll probably see a wide range of bras with little bows in between the two cups.
And after one Quora user questioned where the decoration comes from, a history expert swiftly replied with the answer we've all been waiting for.
"In olden days when women wore corsets, there was a piece of whalebone called a busk," they wrote.
"It was inserted in a sheath down the front of the corset and tied in place with a bow. The busk is gone but the bow remains".
According to the National Museum of American History, baleen 'ribs' - otherwise known as whalebone - is a substance which can be found in the mouth of a whale. It's formed of keratin, which can also be found in human hair and nails.
No wonder it needed a bow to tie it in place!
Meanwhile, one history blogger speculates that bows were first added to corsets in the early 20th century - as well as lace edging and ribbon - to give it a prettier look.
While it seems the jury is still out, Quora users couldn't agree on whether or not bra bows are a welcome addition.
"Am I unreasonable to think a grown woman does not need a ribbon bow between her breasts?!", one woman said.
Another user disagreed. "Sometimes it's just nice to wear a bow where no-one else sees", they stated.
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