Bluetooth is named after King Harald Bluetooth who united Denmark and Norway. He had a dead tooth that was blue which is how he got his nickname. The bluetooth logo is made up of Harald's initials in Old Norse runic symbols 

And it is a Swedish innovation engineered by Ericsson in the 90s. Very interesting how Sweden was one of the biggest countries exporting new network communication back then

I assume he had to chew his sweets on the side opposite the blue tooth or OUCH!, wireless agony.

omg! couldn’t tell if it was real - had to google. thank you for this graphic! https://www.bluetooth.com/about-us/bluetooth-origin/

Love this. Always a fan of Nordic culture

Searchcaster