I want to know the answer to the following question:
When was the Lorelei Fountain written about?
All the background I'm provided with is that "The Bronx has also become home to a peculiar poetic tribute, in the form of the Heinrich Heine Memorial, better known as the Lorelei Fountain from one of Heine's best-known works (1838).". Is that enough to answer the question?
Answer: yes