The distinctive Bluetooth logo also has ties to the Viking ruler. It is a combination of two runes from the Younger Futhark alphabet: ᚼ (H) and ᛒ (B), which are the initials of Harald ...

Bluetooth technology is used by millions of people every day, but many are unaware of the fascinating history behind the name and logo, which date back over 1,000 years to Denmark and Viking royalty ...