The Origin of Bluetooth: Named After a Viking King

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Most people use Bluetooth daily — to connect headphones, speakers, or even cars. But few know that the technology is named after a real person: Harald “Bluetooth” Gormsson, a 10th-century Viking king who united Denmark and parts of Norway.

The engineers behind the wireless protocol were inspired by Harald’s story of unification — just as he united tribes, Bluetooth was designed to unify communication protocols across devices.


In fact, the original logo is a bind rune: a combination of two Nordic runes that represent the initials “H” and “B” for Harald Bluetooth.

The name was never supposed to be permanent — it was a placeholder. But by the time the protocol was ready, everyone was used to calling it “Bluetooth”... and it stuck.

So the next time your headphones pair automatically, you can thank a Viking king whose nickname came from having a dead tooth.



FAQ
Who was Harald Bluetooth?
A Viking king known for uniting Denmark and Norway in the 10th century.
Why name a tech after him?
Engineers saw him as a symbol of unification — just like Bluetooth’s goal.
What does the logo mean?
It’s a bind rune combining his initials in ancient Norse script.