In 1940 Northern Transylvania reverted to Hungary as a result of the Second Vienna Award , but it was reclaimed by Romania after the end of World War II .
After World War I , Transylvania became part of Romania .
In 1940 Northern Transylvania reverted to Hungary as a result of the Second Vienna Award , but Transylvania was reclaimed by Romania after the end of World War II .
After World War I , Transylvania became part of Romania .