+**1397** marked a pivotal year in [Northern Europe](/wiki/Northern_Europe) with the formation of the [Kalmar Union](/wiki/Kalmar_Union). This act united the crowns of Denmark, Norway, and Sweden, shaping the region's political landscape for over a century during the late Middle Ages.
+## See also
+- [Kalmar Union](/wiki/Kalmar_Union)
+- [Scandinavia](/wiki/Scandinavia)
+- [Middle Ages](/wiki/Middle_Ages)