Which invention was named after a medieval king? Correct
https://www.youtube.com/watch?v=8m_7ZgYmQk0 Bluetooth is the invention named after a medieval king, not Blu-ray, Pacemaker, or Guillotine. Bluetooth technology, developed by Ericsson in the 1990s, was named after Harald “Bluetooth” Gormsson, a medieval Danish king known for uniting various Danish tribes into a single kingdom. The name “Bluetooth” was chosen to symbolize the technology’s ability to … Read more