Around 960s - Harald Bluetooth's second marriage Danish anthropologist Karen Schousboe conjectured in 2014 that the Curmsun Disc could be a talisman or medallion, likely created after 963, although at time of her publication it was unclear if the disc was authentic or a fake. In 2021, Schousboe stated that the disc was authentic, based on
Sven Rosborn's research.
Around 986 - Harald Bluetooth's death According to research by Swedish archeologist Sven Rosborn, the Latin inscription on the obverse of the Curmsun Disc may have been created by a
Frankish monk in connection with Harald Bluetooth's death around 986. Rosborn points out that
Adam of Bremen, the only historical source commenting on the death of Harald, says that Harald died in Jumne (Jomsborg) from his wounds. Yet, as Rosborn explains, Jumne probably did not have a Christian church, so Harald's body may have been buried, at least temporarily, in the nearest church located at Wiejkowo. Thus, the disc may have been placed near the burial.
Around 1100 – Harald Bluetooth canonized? According to Danish archivist Steffen Harpsøe, the disc may have been created by local priests around
Jomsborg and
Wiejkowo between 1050 and 1125, if missionaries had canonized
Harald Bluetooth. Harpsøe also stated that it is unclear if the disc is genuine. argues further that it is impossible to precisely date gold objects; even if the alloy is accurate, it might come from a melted down Viking age artefact. The disc could therefore potentially have been created at any time. Several other Danish professors, including and Jens Ulriksen, are equally dubious of the authenticity of the Curmsun disc and the associated
Gesta Wuleniensis, and are highly critical of Rosborn's arguments and use of historical sources. The Curmsun Disc was featured on the reality television series
Expedition Unknown. Danish archaeologist mentioned the disc but could only say that it may be related to Harald Bluetooth. ==Metallurgical analysis==