1. You probably know about déjà vu, the feeling that you've experienced something before. But if you have a feeling you've experienced something before, but only in a dream, there's another term for that: déjà rêvé (day-jah reh-vay).

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So if you've ever felt like, "Wait, I swear I had a dream about this exact thing happening," that's déjà rêvé.

2. During Prohibition, moonshiners and other bootleggers would wear "cow shoes" that would leave an imprint that looked like hooves. The idea was to make it harder for police to track their movements through footprints.

These are the shoes some prohibition moonshiners would wear. Officers believe the inventor got his idea from a Sherlock Holmes story in which the villain outfitted his horse with shoes that disguised its imprints as those of a cow's hooves.

3. There's a Japanese word for when you keep buying books but you don't get around to reading them: tsundoku.

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The term is found in print as early as 1879, which goes to show you that some things never change.

4. Ravens can talk as well as - or even better than - parrots.

5. Justin Timberlake's mom was Ryan Gosling's legal guardian for a while.

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Gosling is Canadian, and his parents often had to stay in Canada while he was filming Mickey Mouse Club as a kid. Gosling needed a legal guardian on set, so Timberlake's mother stepped up and took on the role. Gosling and Timberlake even lived together for a bit.

6. In Harry Potter and the Order of the Phoenix, Arthur Weasley enters the code 6-2-4-4-2 in the phone booth to enter the Ministry of Magic. On a phone keypad, that code spells out "MAGIC."

8. Michelle Obama has more Grammy awards than Katy Perry.

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Michelle Obama won at the 2019 Grammy Awards for Best Spoken Word Album for her memoir, Becoming. Katy Perry has been nominated many times but has not yet won a Grammy.

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