Fictional story elements introduced in 1938

fictional planet, native world of Superman

Syldavia (Syldavian: ) is a fictional country in The Adventures of Tintin, the comics series by Belgian cartoonist Hergé. It is located in the Balkans and has a rivalry with the fictional neighbouring country of Borduria. Syldavia is depicted in ''King Ottokar's Sceptre (1938–1939), Destination Moon (1950), Explorers on the Moon (1952–1953, briefly), The Calculus Affair (1954–1956), and Tintin and the Lake of Sharks (1972), and is mentioned in Tintin and the Picaros'' (1975–1976).

Borduria is a fictional country in The Adventures of Tintin, the comics series by Belgian cartoonist Hergé. It is located in the Balkans and has a rivalry with the fictional neighbouring country of Syldavia. Borduria is depicted in ''King Ottokar's Sceptre (1938–1939) and The Calculus Affair (1954–1956), and is referred to in Tintin and the Picaros'' (1975–1976). Another international rival is Khemed.

emblem of the comic book superhero Superman