From the Hans Christian Andersen biography "The Life of Hans Christian Andersen. Day By Day", written by DPhil Johan de Mylius:
6 October 1851
HCA is appointed titular professor.
First performance of Hyldemoer. Phantasiespil i een Act (The Elder-Tree Mother. Fantasy Play in One Act) at the Casino theatre. The play is performed a total of 60 times in HCA's lifetime.
Hyldemoer is released as a book.