Bluetooth

I’m sure you’ve seen the logo for the bluetooth communication protocol before even if you don’t know exactly what it does but have you ever wondered what that runic white symbol on a blue background actually means ?
Harald Gormsson was a 10th century Scandinavian King whose nickname was Bluetooth, probably because he had a conspicuously dark (blue) tooth.
The Swedish developers at Ericsson who created Bluetooth wanted to create a technology that united devices from various (warring ?) companies like Microsoft, Apple and Sony. They must have been history geeks as they drew parallels with Harald Bluetooth who violently united factions in what is now Norway, Sweden and Denmark to create a United Scandinavia. Not only did they name the technology Bluetooth but the logo consists of the Nordic runes for his initials, H (hagall) and B (berkanan) in white on a blue pebble/stone shape.
Bluetooth® technology was named after a 10th century Danish King.
Fact! The name Bluetooth comes from the 10th century Danish King Harald Blåtand or Harold Bluetooth in English. King Blåtand helped unite warring factions in parts of what are now Norway, Sweden and Denmark. Similarly, Bluetooth technology was created as an open standard to allow connectivity and collaboration between disparate products and industries.