Gothicism or Gothism (Swedish: Göticism Swedish pronunciation: [ˈjøːtɪsˌɪsm]; Latin: Gothicismus) was a cultural movement in Sweden, centered on the belief in the glory of the Swedish Geats, who were identified with the Goths. The founders of the movement were Nicolaus Ragvaldi and the brothers Johannes and Olaus Magnus. The belief continued to hold power in the 17th century, when Sweden was a great power following the Thirty Years' War, but lost most of its sway in the 18th. It was renewed by the Viking revival and Romantic nationalism in the early 19th century, this time with the Vikings as heroic figures.