Problem: Late Middle Ages:

The Bulgarian Empire was in decline by the 14th century, and the ascendancy of Serbia was marked by the Serbian victory over the Bulgarians in the Battle of Velbazhd in 1330. By 1346, the Serbian king Stefan Dusan had been proclaimed emperor. Yet Serbian dominance was short-lived; the Serbian army led by the Lazar Hrebljevanovic was defeated by the Ottomans at the Battle of Kosovo in 1389, where most of the Serbian nobility was killed and the south of the country came under Ottoman occupation, as much of southern Bulgaria had become Ottoman territory in 1371. Northern remnants of Bulgaria were finally conquered by 1396, Serbia fell in 1459, Bosnia in 1463, and Albania was finally subordinated in 1479 only a few years after the death of Skanderbeg. Belgrade, an Hungarian domain at the time, was the last large Balkan city to fall under Ottoman rule, in 1521. By the end of the medieval period, the entire Balkan peninsula was annexed by, or became vassal to, the Ottomans.

Which country was conquered by the Ottomans in 1479?
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A: Albania

Problem: Idealist notions took a strong hold among physicists of the early 20th century confronted with the paradoxes of quantum physics and the theory of relativity. In The Grammar of Science, Preface to the 2nd Edition, 1900, Karl Pearson wrote, "There are many signs that a sound idealism is surely replacing, as a basis for natural philosophy, the crude materialism of the older physicists." This book influenced Einstein's regard for the importance of the observer in scientific measurements[citation needed]. In 5 of that book, Pearson asserted that "...science is in reality a classification and analysis of the contents of the mind...." Also, "...the field of science is much more consciousness than an external world."
Who is claimed to have been influenced by The Grammar of Science?
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Answer: Einstein

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Upon his election to the papacy, Montini took the pontifical name Paul VI (the first to take the name "Paul" since 1605) to indicate a renewed worldwide mission to spread the message of Christ, following the example of Apostle St. Paul.[citation needed] He re-convened the Second Vatican Council, which was automatically closed with the death of John XXIII, and gave it priority and direction. After the council had concluded its work, Paul VI took charge of the interpretation and implementation of its mandates, often walking a thin line between the conflicting expectations of various groups within Catholicism. The magnitude and depth of the reforms affecting all fields of Church life during his pontificate exceeded similar reform policies of his predecessors and successors. Paul VI was a Marian devotee, speaking repeatedly to Marian congresses and mariological meetings, visiting Marian shrines and issuing three Marian encyclicals. Following his famous predecessor Saint Ambrose of Milan, he named Mary as the Mother of the Church during the Second Vatican Council. Paul VI sought dialogue with the world, with other Christians, other religions, and atheists, excluding nobody. He saw himself as a humble servant for a suffering humanity and demanded significant changes of the rich in North America and Europe in favour of the poor in the Third World. His positions on birth control, promulgated most famously in the 1968 encyclical Humanae vitae, and other political issues, were often controversial, especially in Western Europe and North America.
What publication promoted Pope Paul VI's views on abortion?
A: encyclical Humanae vitae

Context and question: Excluding the outlying parks of Bois de Boulogne and Bois de Vincennes, Paris covers an oval measuring about 87 km2 (34 sq mi) in area, enclosed by the 35 km (22 mi) ring road, the Boulevard Peripherique. The city's last major annexation of outlying territories in 1860 not only gave it its modern form but also created the 20 clockwise-spiralling arrondissements (municipal boroughs). From the 1860 area of 78 km2 (30 sq mi), the city limits were expanded marginally to 86.9 km2 (33.6 sq mi) in the 1920s. In 1929, the Bois de Boulogne and Bois de Vincennes forest parks were officially annexed to the city, bringing its area to about 105 km2 (41 sq mi). The metropolitan area of the city is 2,300 km2 (890 sq mi).
What road encircles Paris?
Answer: Boulevard Peripherique

Question: The interwar period was also marked by a radical change in the international order, away from the balance of power that had dominated preWorld War I Europe. One main institution that was meant to bring stability was the League of Nations, which was created after the First World War with the intention of maintaining world security and peace and encouraging economic growth between member countries. The League was undermined by the bellicosity of Nazi Germany, Imperial Japan, the Soviet Union, and Mussolini's Italy, and by the non-participation of the United States, leading many to question its effectiveness and legitimacy.
Is there an answer to this question: What effect did the undermining of The league of Nations have on the people?

Answer: leading many to question its effectiveness and legitimacy.

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The example Leibniz uses involves two proposed universes situated in absolute space. The only discernible difference between them is that the latter is positioned five feet to the left of the first. The example is only possible if such a thing as absolute space exists. Such a situation, however, is not possible, according to Leibniz, for if it were, a universe's position in absolute space would have no sufficient reason, as it might very well have been anywhere else. Therefore, it contradicts the principle of sufficient reason, and there could exist two distinct universes that were in all ways indiscernible, thus contradicting the identity of indiscernibles.
What does Leibniz place at two points in deep space?
A:
unanswerable