Context: The Council of Trent approved a plan in 1563 for correcting the calendrical errors, requiring that the date of the vernal equinox be restored to that which it held at the time of the First Council of Nicaea in 325 and that an alteration to the calendar be designed to prevent future drift. This would allow for a more consistent and accurate scheduling of the feast of Easter. In 1577, a Compendium was sent to expert mathematicians outside the reform commission for comments. Some of these experts, including Giambattista Benedetti and Giuseppe Moleto, believed Easter should be computed from the true motions of the sun and moon, rather than using a tabular method, but these recommendations were not adopted. The reform adopted was a modification of a proposal made by the Calabrian doctor Aloysius Lilius (or Lilio).

Question: When did the Council of Trent agree to the corrected calendar?
Answer: 1563

Question: To what time did the Council require the date of the vernal equinox to be set?
Answer: 325

Question: What did mathematicians of the time want to use to set the date of Easter?
Answer: motions of the sun and moon

Question: What method was used instead of computations of the sun and moon?
Answer: tabular method

Question: Whose modified proposal was adopted?
Answer: Aloysius Lilius

Question: What plan to the Council of Trent approve in the fifteenth century?
Answer: Unanswerable

Question: What did the first Council of Nicaea require to be restored to the one set in 325?
Answer: Unanswerable

Question: What did the first Council of Nicaea require alterations for?
Answer: Unanswerable

Question: What was sent to mathematicians in the fifteenth century?
Answer: Unanswerable

Question: What was adopted from the proposal of Moleto
Answer: Unanswerable