Q: Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
Nordisk familjebok (Swedish: (nusk famljbuk), Nordic Family Book) is a Swedish encyclopedia that was published in print form between 1876 and 1957, and that is now fully available in digital form via Project Runeberg at Linkoping University.
A:
On what date did Nordisk familjebok end?