There is a great device in your mobile phone called Bluetooth. The origin of Bluetooth history actually goes back to Vikings. Vikings were Pagan people of ancient Denmark, Norway, Sweden.
The symbol given to this Bluetooth is two of the Vikings languageA collection of words
Haglaz means Que
Bjarkan means La
In the 10th century AD, a Viking king united Denmark and Norway. This king's name was Bluetooth Gormsson. Because this king connected the two countries, this mobile device was also called Bluetooth because it also connected two mobile devices