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Harold Bluetooth

Mentioned in 2 analyzed podcast episodes across 2 shows

Appears On

History Daily Dan Carlin's Hardcore History

Episode Appearances

History Daily · Apr 11, 2026

Saturday Matinee: Etymoleon

“10th century Danish king who united tribes; inspired the name for Bluetooth wireless technology”

Word etymology and linguistic historyLatin and Greek root systems in EnglishSemantic shift and meaning evolution

Dan Carlin's Hardcore History

Dan Carlin's Hardcore History · Nov 19, 2023

Show 70 - Twilight of the Aesir II

“First documented Scandinavian ruler to convert to Christianity and enforce conversion on subjects, consolidating Danish power”

Norse Pagan Religion and the Æsir PantheonChristian Evangelism and Religious Conversion StrategyViking Settlement and Colonization Patterns