Gregorian reform of 1582

Target entity: Gregorian reform of 1582
Context triple: [proleptic Gregorian calendar, relatedTo, Gregorian reform of 1582]

• A. Gregorian Reform
  The Gregorian Reform was an 11th-century movement within the Catholic Church that sought to strengthen papal authority and eliminate practices like simony and lay investiture, reshaping the relationship between church and secular rulers.
• B. Counter-Reformation
  The Counter-Reformation was the Roman Catholic Church’s reform and revival movement in the 16th and 17th centuries that responded to Protestantism through doctrinal clarification, internal renewal, and efforts to reclaim followers.
• C. Marian reforms
  The Marian reforms were a series of military and political changes in the late Roman Republic, traditionally attributed to Gaius Marius, that professionalized the Roman army and reshaped Roman society and politics.
• D. Reformation
  The Reformation was a 16th-century religious movement that challenged the authority and practices of the Catholic Church, leading to the rise of Protestantism and profound political, cultural, and intellectual changes in Europe.
• E. Synod of Diamper
  The Synod of Diamper was a 1599 ecclesiastical council in Kerala that brought the St. Thomas Christians under the authority of the Roman Catholic Church and sought to Latinize their ancient East Syriac traditions.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Gregorian reform of 1582
Target entity description: The Gregorian reform of 1582 was the papal-led overhaul of the Julian calendar that corrected its drift against the solar year and introduced the modern Gregorian calendar system.

• A. Gregorian Reform
  The Gregorian Reform was an 11th-century movement within the Catholic Church that sought to strengthen papal authority and eliminate practices like simony and lay investiture, reshaping the relationship between church and secular rulers.
• B. Counter-Reformation
  The Counter-Reformation was the Roman Catholic Church’s reform and revival movement in the 16th and 17th centuries that responded to Protestantism through doctrinal clarification, internal renewal, and efforts to reclaim followers.
• C. Marian reforms
  The Marian reforms were a series of military and political changes in the late Roman Republic, traditionally attributed to Gaius Marius, that professionalized the Roman army and reshaped Roman society and politics.
• D. Reformation
  The Reformation was a 16th-century religious movement that challenged the authority and practices of the Catholic Church, leading to the rise of Protestantism and profound political, cultural, and intellectual changes in Europe.
• E. Synod of Diamper
  The Synod of Diamper was a 1599 ecclesiastical council in Kerala that brought the St. Thomas Christians under the authority of the Roman Catholic Church and sought to Latinize their ancient East Syriac traditions.
• F. None of above. chosen