Everyone with a smartphone uses Bluetooth technology, and although everyone has heard of this more than a quarter-century-old technology, few know the strange story behind its name and logo, which goes back to Northern European ruler Harald Grumson.
King Harald Gromsson (Bluetooth) united Denmark and Norway in the 10th century, and it appears that he got his nickname because of his dead age, which was dark blue.
How did new technology get the nickname "dead tooth"?
King Harald's nickname "Bluetooth" was considered the appropriate name for the new technology created in the 1990s, and was chosen because King Harald brought two nations together;
It is the primary task of the new technology that links devices together.
Bluetooth technology allows information and data to be transferred from one device to another on a short range without a physical connection.
Today, this technology connects your smartphone to earphones and other wireless devices.
Initially, the name was intended to be an internal code used by workers during the entire development of the technology.
But then, other options put forward by the marketing team were found to be either not original, or not patentable at the time, so the engineers settled on the name "Bluetooth".
The Bluetooth logo is a combination of King Harald Bluetooth's initials in Old Norse;
The symbol "ᚼ" means the letter "H", and the symbol "ᛒ" means the letter "B".
Bluetooth logo consisting of the initials of King Harald Bluetooth in the Nordic language (communication sites)
King Harald lived in the 10th century, is famous for introducing Christianity to Scandinavia, and at one time ruled what is now Denmark, northern Germany, southern Sweden, and parts of Norway.
While some accounts indicate that his blue age earned him his nickname, other sources say that his nickname may have come from the color of his skin, which tended to blue.
Apparently, "Blaa" is the modern Danish word for "blue", but in the past it meant "dark-skinned".
On the other hand, the word "tan" meant "the great man", but it was confused with the modern Danish word for "tooth".
Regardless of the story of King Harald's disputed title, the symbol of technology has a clear meaning: the ability to link two technical devices together.