Context and question: By the Middle Ages, large numbers of Jews lived in the Holy Roman Empire and had assimilated into German culture, including many Jews who had previously assimilated into French culture and had spoken a mixed Judeo-French language. Upon assimilating into German culture, the Jewish German peoples incorporated major parts of the German language and elements of other European languages into a mixed language known as Yiddish. However tolerance and assimilation of Jews in German society suddenly ended during the Crusades with many Jews being forcefully expelled from Germany and Western Yiddish disappeared as a language in Germany over the centuries, with German Jewish people fully adopting the German language.
What language did many of the Jews speak after the crusades? 
Answer: German
Context and question: In 1965, Paul VI decided on the creation of a joint working group with the World Council of Churches to map all possible avenues of dialogue and cooperation. In the following three years, eight sessions were held which resulted in many joint proposals. It was proposed to work closely together in areas of social justice and development and Third World Issues such as hunger and poverty. On the religious side, it was agreed to share together in the Week of Prayer for Christian Unity, to be held every year. The joint working group was to prepare texts which were to be used by all Christians. On 19 July 1968, the meeting of the World Council of Churches took place in Uppsala, Sweden, which Pope Paul called a sign of the times. He sent his blessing in an ecumenical manner: "May the Lord bless everything you do for the case of Christian Unity." The World Council of Churches decided on including Catholic theologians in its committees, provided they have the backing of the Vatican.
In what year did the World Council of Churches meet in Uppsala, Sweden?
Answer: 1968
Context and question: During the last decade, Philadelphia experienced a large shift in its age profile. In 2000, the city's population pyramid had a largely stationary shape. In 2013, the city took on an expansive pyramid shape, with an increase in the three millennial age groups, 20 to 24, 25 to 29, and 30 to 34. The city's 25- to 29-year-old age group was the city's largest age cohort. According to the 2010 Census, 343,837 (22.5%) were under the age of 18; 203,697 (13.3%) from 18 to 25; 434,385 (28.5%) from 25 to 44; 358,778 (23.5%) from 45 to 64; and 185,309 (12.1%) who were 65 years of age or older. The median age was 33.5 years. For every 100 females there were 89.4 males. For every 100 females age 18 and over, there were 85.7 males. The city had 22,018 births in 2013, down from a peak 23,689 births in 2008. Philadelphia's death rate was at its lowest in at least a half-century, 13,691 deaths in 2013. Another factor attributing to the population increase is Philadelphia's immigration rate. In 2013, 12.7 percent of residents were foreign-born, just shy of the national average, 13.1 percent.
How many people at the last census were under 18?
Answer:
343,837