Input: Immaculate Conception
On 28 February 1476, Pope Sixtus IV, authorized those dioceses that wished to introduce the feast to do so, and introduced it to his own diocese of Rome in 1477, with a specially composed Mass and Office of the feast. With his bull Cum praeexcelsa of 28 February 1477, in which he referred to the feast as that of the Conception of Mary, without using the word "Immaculate", he granted indulgences to those who would participate in the specially composed Mass or Office on the feast itself or during its octave, and he used the word "immaculate" of Mary, but applied instead the adjective "miraculous" to her conception. On 4 September 1483, referring to the feast as that of "the Conception of Immaculate Mary ever Virgin", he condemned both those who called it mortally sinful and heretical to hold that the "glorious and immaculate mother of God was conceived without the stain of original sin" and those who called it mortally sinful and heretical to hold that "the glorious Virgin Mary was conceived with original sin", since, he said, "up to this time there has been no decision made by the Roman Church and the Apostolic See." This decree was reaffirmed by the Council of Trent.

What happened on the final day of the month of love that was of significance was authorized by the Holy Roman Church leader ?
Output: authorized those dioceses that wished to introduce the feast to do so, and introduced it to his own diocese of Rome in 1477

Input: Imamah (Shia doctrine)
Imamah (Arabic: ) is the Shia Islam doctrine (belief) of religious, spiritual and political leadership of the Ummah. The Shia believe that the Imams are the true Caliphs or rightful successors of Muhammad, and further that Imams are possessed of divine knowledge and authority (Ismah) as well as being part of the Ahl al-Bayt, the family of Muhammad. These Imams have the role of providing commentary and interpretation of the Quran as well as guidance to their tariqa followers as is the case of the living Imams of the Nizari Ismaili tariqah.

What is the Shia Islam doctrine of religious, spiritual and political leadership of the Ummah?
Output: Imamah

Input: East Prussia
The Kingdom of Prussia became the leading state of the German Empire after its creation in 1871. However, the Treaty of Versailles following World War I granted West Prussia to Poland and made East Prussia an exclave of Weimar Germany (the new Polish Corridor separating East Prussia from the rest of Germany), while the Memel Territory was detached and was annexed by Lithuania in 1923. Following Nazi Germany's defeat in World War II in 1945, war-torn East Prussia was divided at Joseph Stalin's insistence between the Soviet Union (the Kaliningrad Oblast in the Russian SFSR and the constituent counties of the Klaipeda Region in the Lithuanian SSR) and the People's Republic of Poland (the Warmian-Masurian Voivodeship). The capital city Konigsberg was renamed Kaliningrad in 1946. The German population of the province was largely evacuated during the war or expelled shortly thereafter in the expulsion of Germans after World War II. An estimated 300,000 (around one fifth of the population) died either in war time bombings raids or in the battles to defend the province.[citation needed]

What year did the Nazi's fall in World War II?
Output: 1945

Input: Carnival
While christian festivals such as corpus christi were church-sanctioned celebrations, Carnival was also a manifestation of European folk culture. In the Christian tradition the fasting is to commemorate the 40 days that Jesus fasted in the desert according to the New Testament and also to reflect on Christian values. As with many other Christian festivals such as Christmas which was originally a pagan midwinter festival, the Christian church has found it easier to turn the pagan Carnaval in a catholic tradition than to eliminate it. Unlike today, carnival in the Middle Ages took not just a few days, but it covered almost the entire period between Christmas and the beginning of Lent. In those two months, several Catholic holidays were seized by the Catholic population as an outlet for their daily frustrations.

What pagan midwinter festival did the church find easier to subvert than eliminate?
Output:
Christmas