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About Clas Theodor Odhner
- Clas Jonas Theodor Odhner (June 17, 1836 in Alingsås, Sweden – June 11, 1904 in Stockholm, Sweden) was a Swedish historian, and director of the Swedish National Archives (Riksarkivet). The son of a clergyman, Odhner's mother was a sister of Nils Ericson and John Ericsson.
- Odhner went to school in Skara and matriculated at Uppsala University in 1851, completing the degree of filosofie magister and becoming a docent of History in 1860.
- He taught at Lund University from 1865, as professor of history from 1870 until 1887, when he was appointed riksarkivarie, director of the National Archives, a position where he remained until 1901.
- Odhner was a member of the Second Chamber of the Riksdag 1894-1897.
- He was elected Member of the Swedish Academy in 1885, and was member of several other learned societies. Odhner was a productive writer, and the schoolbooks he authored were influential.
- He was the main mover in the introduction of the new organisation of the archives for government agencies with a number of provincial archives (landsarkiv), to some extent subordinate to the National Archives. He was father of the zoologist and explorer Teodor Odhner.
- The engineer Willgodt Odhner was the son of his first cousin.
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