Question: 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.
Is there an answer to this question: Which country invaded east Prussia in World War I?

Answer: Russian Empire


Question: When the Majority Leader's party loses control of the House, and if the Speaker and Majority Leader both remain in the leadership hierarchy, convention suggests that they would become the Minority Leader and Minority Whip, respectively. As the minority party has one less leadership position after losing the speaker's chair, there may be a contest for the remaining leadership positions. Nancy Pelosi is the most recent example of an outgoing Speaker seeking the Minority Leader post to retain the House party leadership, as the Democrats lost control of the House in the 2010 elections. Outgoing Speaker Nancy Pelosi ran successfully for Minority Leader in the 112th Congress.
Is there an answer to this question: Does the minority or majority party have more leadership positions in House?

Answer: minority party has one less leadership position


Question: This change is interesting from a sociolinguistic point of view because it has apparently happened relatively recently, in the 1970s, and was pioneered by older well-educated women from the upper middle classes. The lowering of the diphthongs has long been current in many Dutch dialects, and is comparable to the English Great Vowel Shift, and the diphthongisation of long high vowels in Modern High German, which centuries earlier reached the state now found in Polder Dutch. Stroop theorizes that the lowering of open-mid to open diphthongs is a phonetically "natural" and inevitable development and that Dutch, after having diphthongised the long high vowels like German and English, "should" have lowered the diphthongs like German and English as well.
Is there an answer to this question: The lowering of diphthongs is intriguing partly because it's associated with what single gender?

Answer: women


Question: From the early 16th century, both Western Armenia and Eastern Armenia fell under Iranian Safavid rule. Owing to the century long Turco-Iranian geo-political rivalry that would last in Western Asia, significant parts of the region were frequently fought over between the two rivalling empires. From the mid 16th century with the Peace of Amasya, and decisively from the first half of the 17th century with the Treaty of Zuhab until the first half of the 19th century, Eastern Armenia was ruled by the successive Iranian Safavid, Afsharid and Qajar empires, while Western Armenia remained under Ottoman rule. In the late 1820s, the parts of historic Armenia under Iranian control centering on Yerevan and Lake Sevan (all of Eastern Armenia) were incorporated into the Russian Empire following Iran's forced ceding of the territories after its loss in the Russo-Persian War (1826-1828) and the outcoming Treaty of Turkmenchay. Western Armenia however, remained in Ottoman hands.
Is there an answer to this question: When did the Russo-Persian War end?

Answer:
1828