1900-1949 (The Kalmar Union)

1901
Finland - Eric III dies. Succeeded by Eric IV.

1904
Leifia - Japan occupies a large section of the Tlingit coastline.

1909
Svealand - Christopher III of dies. Succeeded by Olaf V.

1911
Leifia - The Erie Canal is completed.

Wessex - Henry IX dies. Succeeded by Edmund VIII.

1912
Anglia - Christopher III dies. Edward succeeds.

1914
Wessex - Edmund VIII dies. Succeeded by Frederick I.

1916
Leifia - Japan and Vinland sign the Treaty of Kaien dividing North-Western Leifia.

Arctic - Lade and Hordaland agree joint sovereignty over Svalbard. It is incorporated into neither country but instead run as special region by a joint bureau of both foreign offices.

Svealand - Olaf V dies. He is succeeded by Carl III.

1947
Anglia - Edward dies. Christopher IV succeeds.

Svealand - Carl III dies. Gustav VIII succeeds.