Christian Jürgensen Thomsen
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Christian Jürgensen Thomsen (December 29, 1788 – May 21, 1865) was a Danish archaeologist.
Although he lacked academic training, in 1816 he was appointed head of 'antiquarian' collections which later developed into the National Museum of Denmark in Copenhagen. It was while classifying the antiquities that he proposed the three-age system, for which he is remembered internationally.
Thomsen also wrote one of the first systematic treatises on gold bracteates of the Migration period.