From denmark.dk: Amulet linked to early Christianity.

King Harold Bluetooth brought Christianity to Denmark roughly 1100 years ago. At least that’s what he declared on the Jelling Stone located in Jutland:

‘King Haraldr ordered this monument made in memory of Gormr, his father, and in memory of Thyrvé, his mother; that Haraldr who won for himself all of Denmark and Norway and made the Danes Christian.’

A tiny crystal amulet in the National Museum’s archives suggests something quite different though, that maybe Christianity arrived in Denmark six centuries earlier than previously believed.

(I’ve removed the link to denmark.dk, as the article is no longer available on their site.)