[1] Uno Röndahl’s writings centered on Scanian history and especially the war events taking place in the province of Skåne and in particular in the border areas between contemporary Danish Skåne/Blekinge and Swedish Småland during the period 1645-1720.
The results often gave a very brutal picture of the war events during this period, particularly in the border regions between Sweden and Denmark in North-Eastern Scania.
He also describes in the book many of the historical figures, including those from before 1658, who had played an important role in the history of the old Danish provinces of Skåne and Halland, Blekinge.
Year 2006 the book "Herulerna, det glömda folket” (“The Herulis - the forgotten people") was released, with Uno Röndahl as a co-writer.
Uno Röndahl did not become fully recognized by the academic establishment, despite his extensive research in the primary source material.