The Rök runestone (Swedish: Rökstenen; Ög 136) is one of the most famous runestones, featuring the longest known runic inscription in stone. It can now be seen beside the church in Rök, Ödeshög Municipality, Östergötland, Sweden. It is considered the first known piece of written Swedish literature and thus it marks the beginning of the history of Swedish literature. Source: Wikipedia (en)