Context: A month after having decreed the reform, the pope with a brief of 3 April 1582 granted to Antonio Lilio, the brother of Luigi Lilio, the exclusive right to publish the calendar for a period of ten years. The Lunario Novo secondo la nuova riforma printed by Vincenzo Accolti, one of the first calendars printed in Rome after the reform, notes at the bottom that it was signed with papal authorization and by Lilio (Con licentia delli Superiori... et permissu Ant(onii) Lilij). The papal brief was later revoked, on 20 September 1582, because Antonio Lilio proved unable to keep up with the demand for copies.

Question: When were the rights to publish the calendar granted?
Answer: 3 April 1582

Question: Who awarded the rights to publish the calendar?
Answer: the pope

Question: What problem caused the papal brief granting the right to publish to be withdrawn?
Answer: demand for copies

Question: When were the rights to print the calendar withdrawn?
Answer: 20 September 1582

Question: Where were the first calendars printed?
Answer: Rome

Question: Who decreed the reform during the fifteenth century?
Answer: Unanswerable

Question: What was Luigi Lilio given exclusive rights to?
Answer: Unanswerable

Question: Why was a new brief granted in September 2015 eighty-two?September
Answer: Unanswerable