The wireless communication device, Bluetooth, is named after King Harald I of Denmark, the 10th century king whose epithet was “Bluetooth.”  He was famous for uniting several Danish tribes.  This unity is the goal for Bluetooth.  Not uniting Danish tribes, but uniting people across the world with technology.

I have a Bluetooth.  But I don’t look cool with it.  Bluetooths (Blueteeth?) only work if you’re a bald, black guy.