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Finnish historian
Arvo Kunto Viljanti (until 1935 named Viklund, 24 August 1900 in Pargas – 6 July 1974 in Turku) was a Finnish historian.
Viljanti had earned a PhD and from 1962 worked as a professor at the University of Åbo. He was specialized in Swedish–Finnish military history of the 16th and 17th centuries.