Question: When is Rúhíyyih Khánum's husband's birthday?
Sentence (from "Shoghi Effendi"): Shoghi Effendi died without appointing a successor Guardian, and the Universal House of Justice, the only institution authorized to adjudicate on situations not covered in scripture, later announced that it could not legislate to make possible the appointment of a successor to Shoghi Effendi.
Relevant evidence: No