Rök Runestone (monument) built
900 CE.
Shown on the map at 58.295°, 14.775°.
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.
Text from the Wikipedia article Rök runestone, licensed CC BY-SA 4.0.