Culture and history

Old strategic points

These islands are mentioned in old sailing documents from the 13th century, as they were strategic points for warning of approaching enemy fleets. The islands were probably inhabited in the 13th century. Both islands were severely affected by the Russian invasion in 1719. Stockholm City bought Rånö in 1949, and Ålö in 1964. The islands were handed over to the Archipelago Foundation in 1998.