King Harald Bluetooth has lived in Denmark since 910 AD until 940 AD. The name Bluetooth (or Blataand in the language of the Vikings) has nothing to do with blue teeth. It means dark color of hair, which was very unusual for Scandinavians. The existence of King Harald Bluetooth would be completely unknown if it had not joined the Nordic countries and if Ericsson had not given his name to the new wireless communication protocol developed together with other major companies in the area. [Read more…]