At the beginning of World War I, East Prussia became a theatre of war when the Russian Empire invaded the country. The Russian Army encountered at first little resistance because the bulk of the German Army had been directed towards the Western Front according to the Schlieffen Plan. Despite early success and the capture of the towns of Rastenburg and Gumbinnen, in the Battle of Tannenberg in 1914 and the Second Battle of the Masurian Lakes in 1915, the Russians were decisively defeated and forced to retreat. The Russians were followed by the German Army advancing into Russian territory.
In what year did the battle of Tannenberg take place?
1914

Input: Westminster Abbey
According to a tradition first reported by Sulcard in about 1080, a church was founded at the site (then known as Thorn Ey (Thorn Island)) in the 7th century, at the time of Mellitus, a Bishop of London. Construction of the present church began in 1245, on the orders of King Henry III.

What was the area previously named?
Output: Thorn Ey (Thorn Island)

Input: Article: On 30 October 2009, May wrote a fanclub letter on his website stating that Queen had no intentions to tour in 2010 but that there was a possibility of a performance. He was quoted as saying, "The greatest debate, though, is always about when we will next play together as Queen. At the moment, in spite of the many rumours that are out there, we do not have plans to tour in 2010. The good news, though, is that Roger and I have a much closer mutual understanding these daysprivately and professionally ... and all ideas are carefully considered. Music is never far away from us. As I write, there is an important one-off performance on offer, in the USA, and it remains to be decided whether we will take up this particular challenge. Every day, doors seem to open, and every day, we interact, perhaps more than ever before, with the world outside. It is a time of exciting transition in Rock music and in 'The Business'. It's good that the pulse still beats". On 15 November 2009, May and Taylor performed "Bohemian Rhapsody" live on the British TV show The X Factor alongside the finalists.

Now answer this question: What date did May and Taylor of Queen perform Bohemian Rhapsody on X-Factor?

Output: 15 November 2009

Article: In some countries, law enforcement uses race to profile suspects. This use of racial categories is frequently criticized for perpetuating an outmoded understanding of human biological variation, and promoting stereotypes. Because in some societies racial groupings correspond closely with patterns of social stratification, for social scientists studying social inequality, race can be a significant variable. As sociological factors, racial categories may in part reflect subjective attributions, self-identities, and social institutions.

Question: What may in part reflect subjective attributes, self-identities and social institutions?
Ans: sociological factors

Here is a question about this article: On the other hand, I2a1b1 (P41.2) is typical of the South Slavic populations, being highest in Bosnia-Herzegovina (>50%). Haplogroup I2a2 is also commonly found in north-eastern Italians. There is also a high concentration of I2a2a in the Moldavian region of Romania, Moldova and western Ukraine. According to original studies, Hg I2a2 was believed to have arisen in the west Balkans sometime after the LGM, subsequently spreading from the Balkans through Central Russian Plain. Recently, Ken Nordtvedt has split I2a2 into two clades N (northern) and S (southern), in relation where they arose compared to Danube river. He proposes that N is slightly older than S. He recalculated the age of I2a2 to be ~ 2550 years and proposed that the current distribution is explained by a Slavic expansion from the area north-east of the Carpathians.
What is the answer to this question: Haplogroup I2a2 is commonly found in what group of people?
****
So... north-eastern Italians

Article: He was General Secretary (later Chairman of the Presidium) of the League of Communists of Yugoslavia (193980), and went on to lead the World War II Yugoslav guerrilla movement, the Partisans (194145). After the war, he was the Prime Minister (194463), President (later President for Life) (195380) of the Socialist Federal Republic of Yugoslavia (SFRY). From 1943 to his death in 1980, he held the rank of Marshal of Yugoslavia, serving as the supreme commander of the Yugoslav military, the Yugoslav People's Army (JNA). With a highly favourable reputation abroad in both Cold War blocs, Josip Broz Tito received some 98 foreign decorations, including the Legion of Honour and the Order of the Bath.

Question: What position in the League of Communists of Yugoslavia was Tito?
Ans:
General Secretary