Today, Bluetooth technology is so deeply embedded in our lives that we rarely stop to wonder where its curious name comes from. We use Bluetooth to connect headphones, transfer files, or link devices seamlessly. Yet the surprising story behind the name Bluetooth is a fascinating tale that weaves together medieval history, corporate collaboration, and a bit of unexpected creativity.
The birth of a wireless idea and the story behind the name Bluetooth
The surprising story behind the name Bluetooth begins in the early 1990s. At the time, multiple companies were racing to develop short-range wireless communication technologies that could link mobile phones, laptops, and other devices. Among them, Ericsson Mobile Communications, a Swedish telecommunications giant based in Lund, was working intensively on this challenge.
In 1996, Ericsson engineer Jaap Haartsen invented a specification for short-range radio links. This technology aimed to replace RS-232 data cables and allow various types of devices to communicate wirelessly over short distances.
Recognising the potential impact of a standardised technology, major companies — Intel, Nokia, IBM, and Toshiba — joined Ericsson to form a consortium. In May 1998, they established the Bluetooth Special Interest Group (SIG), headquartered initially in Kirkland, Washington, USA.
The goal was clear: create an open standard that could unify wireless communication across devices worldwide.
The unusual choice of “Bluetooth” and its surprising story
While technical work progressed rapidly, the team faced a crucial marketing question: what would they call this new standard?
It was Jim Kardach, an engineer at Intel, who proposed the name “Bluetooth”. Kardach was a history enthusiast. At the time, he had been reading a book titled “The Long Ships” by Frans G. Bengtsson, a historical novel set in the Viking Age.
Inspired by Viking history, Kardach thought of Harald “Bluetooth” Gormsson, a king of Denmark and Norway who reigned from approximately 958 to 986 AD. King Harald was famous for two things: uniting various Danish tribes into one kingdom and introducing Christianity to Denmark. His epithet “Bluetooth” (in Old Norse “Blåtand”) likely referred to a prominent dead tooth, which had a dark blue-grey colour.
Jim Kardach proposed “Bluetooth” as a code name for the project, suggesting that just as King Harald had unified Denmark and Norway, the new technology would unify mobile phones and computers.
From code name to global brand
Initially, “Bluetooth” was intended only as a temporary placeholder. The consortium had planned to choose a more “serious” commercial name before launching the technology.
Two alternative names were heavily considered:
- PAN (Personal Area Networking)
- MC-Link (Multi-Communicator Link)
However, legal clearances for these names were not ready in time for marketing deadlines. As a result, the group decided to move forward with the name “Bluetooth” for the launch of the technology.
Thus, what was supposed to be a quirky, internal codename became a globally recognised brand name.
The hidden meaning behind the Bluetooth logo
The Bluetooth logo itself carries a piece of Viking heritage. The symbol is a combination of two runes from the Younger Futhark alphabet:
- ᛒ (Haglaz): representing the letter “H”
- ᚫ (Bjarkan): representing the letter “B”
These runes are the initials of Harald Bluetooth. The designers combined them into the now-familiar Bluetooth emblem, cleverly tying the technology back to its historical inspiration.
Key dates and milestones in the story behind the name Bluetooth
- 1996: Jaap Haartsen develops the core Bluetooth technology at Ericsson.
- May 1998: Formation of the Bluetooth Special Interest Group (SIG).
- July 1999: First consumer Bluetooth device launched — a hands-free mobile headset.
- 2000: First laptops and mobile phones with built-in Bluetooth hit the market.
- 2004: Bluetooth 2.0 introduced with Enhanced Data Rate (EDR).
- 2009: Bluetooth 3.0 launched with High Speed capability.
- 2010: Bluetooth 4.0 introduced Low Energy (LE) mode, revolutionising wearable tech.
- 2016: Bluetooth 5.0 boosted range, speed and broadcast messaging capacity.
As of 2024, there are over 5 billion Bluetooth devices shipped annually worldwide.
Legacy of a royal connection
Few technologies can claim a direct link to a 10th-century Viking king, but Bluetooth can. What started as an engineer’s casual reading turned into a name known in every corner of the globe.
Thanks to the vision of engineers like Jaap Haartsen and Jim Kardach, and the collaborative effort of tech giants like Ericsson, Intel, IBM, Nokia, and Toshiba, Bluetooth changed how our devices communicate and made the world more connected than ever before.
And all because one man thought a dead-toothed Viking king was the perfect symbol for unification.
Thus, the surprising story behind the name Bluetooth is a testament to how history, creativity, and technology often intertwine in unexpected ways.
