Stara Gradiška was one of the most notorious concentration and extermination camps in Croatia during World War II, mainly due to the crimes committed there against women and children. The camp was specially constructed for women and children of Serb, Jew, and Romani ethnicity. It was established by the Ustaše (Ustasha) regime of the Independent State of Croatia (NDH) in 1941 at the Stara Gradiška prison near the village of Stara Gradiška. The camp was liberated in April 1945 by the Partisans.
According to the list of victims by name of KCL Jasenovac, the Jasenovac memorial site, which includes research as of 2007, the names and data for 12,790 victims of the camp have been established.
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Frösöstenen is the northern-most raised runestone in the world and Jämtland's only runestone. It originally stood at the tip of ferry terminal on the sound between the island of Frösön and Östersund. The stone dates to between 1030 and 1050. It has now been relocated to the lawn in front of the local county seat due to the construction of a new bridge, between 1969 and 1971, on the original site.
Frösö runestone inscription means: Austmaðr, Guðfastr's son, had this stone raised and this bridge built and Christianized Jämtland. Ásbjörn built the bridge. Trjónn and Steinn carved these runes.