ᚼᛒ: Harald Bluetooth and Your Phone

Have you ever wondered why your Bluetooth is called that, and where that symbol came from? Me neither, even when mine stopped working this morning. But it's a fascinating story, as told here by Tom Scott.

(YouTube link)

You have to admit, Bluetooth sounds better than "lower power RF," which is what it could have been. And now, because they named the system Bluetooth, you know a little more about Scandinavian history. Commenters also added that in Sweden, your wireless communication is called Blåtand because that's how they spelled Harald's name.