What connects the popular TV series Vikings, Bluetooth and King Harald of Scandinavia?

Did you know that the popular TV series Vikings, Bluetooth and King Harald of Scandinavia are actually all interlinked?

King Harlad Gormsson of Denmark is historically known to be the ruler who peacefully ‘unified’ the entirety of Scandinavia in one-go. His nickname actually was ‘Harald Bluetooth’ (Blåtand in Norse).
When the inventor of bluetooth Jim Kadach succeeded in its invention, he meant for the technology to ‘unite’ PC and cellular industries with a short-range wireless link and he found the right corollary of ‘unification’ of Scandinavia by King Harald ‘Bluetooth’. Even the logo of bluetooth is actually a combination of the king’s initials ‘H’ and ‘B’ written in Scandinavian runes.

Though ‘Bluetooth’ was actually supposed to be a placeholder name, it ended up getting popular and the name stuck! The other names actually considered for the tech include Personal Area Networking (PAN) and RadioWire! We are now so used to saying ‘Bluetooth’ that even the remote possibility that it could have been named something else, sounds so weird!

Oh, also, you remember the Viking TV series and there was King Harald Finehair (the first ‘king’ of united Norway) who appears in the show? His grandson (again, an other King Harald — but Harald Greycloak) was a vassal king to King Harald Bluetooth (who was also his maternal uncle) who was originally from Denmark, but united all the Scandinavian countries in his kingdom