The band was formed by members Stefan Fredin and Olle Thörnvall while they were still in high school.
According to Fredin, during a history class Fredin shared with another original member Pocke Öhrström, "After a history lesson covering the Thirty Years' War, we both found that this name was perfect for the band.
[2] Singer Robert Zima joined shortly afterwards, along with guitarist Christer Åkerberg in 1972.
In 1977, multi instrumentalist and Fredin's and Thörnvall's former schoolmate Mats Lindberg joined the group [3] and with him they recorded Hej på er (1978), and Mot Alla Odds (1979).
Afterwards the group split up due to the members wanting to pursue solo careers.