Problem: The Crusade of 1197, also known as the Crusade of Henry VI or the German Crusade was a crusade launched by the Hohenstaufen emperor Henry VI in response to the aborted attempt of his father, Emperor Frederick Barbarossa during the Third Crusade in 1189-90. Thus the military campaign is also known as the "Emperor's Crusade" . While his forces were already on their way to the Holy Land, Henry VI died before his departure in Messina on 28 September 1197. The emerging throne conflict between his brother Philip of Swabia and the Welf rival Otto of Brunswick made many higher-ranking crusaders return to Germany in order to protect their interests in the next imperial election. The nobles remaining on the campaign captured the Levant coast between Tyre and Tripoli before returning to Germany. The Crusade ended abruptly after the fall of Sidon and Beirut in 1198.

How many years did the Emperor's Crusade last?
Answer: 1

Problem: In the late 1370s and early 1380s, Timur helped Tokhtamysh assume supreme power in the White Horde against Tokhtamysh's uncle Urus Khan. After this he united the White and Blue Hordes, forming the Golden Horde, and launched a massive military punitive campaign against the Russian principalities between 1381 and 1382, restoring Turco-Mongol power in Russia after the defeat in the Battle of Kulikovo. The Golden Horde, after a period of anarchy between the early 1360s and late 1370s, passed for a briefly reestablishing as a dominant regional power, defeating Lithuania in Poltava around 1383. But Tokhtamysh had territorial ambitions in Persia and Central Asia, and on account of this he turned against his old ally, Timur.

Who led the White Horde before Tokhtamysh gained power?
Answer: Urus Khan

Problem: The reino or native kingdom of Manufahi lay on the southern coast of Timor, within the military district of Alas, based on the rationalised re-districting of 1860. It had an estimated population of 42,000 living in 6,500 houses in 1903. It owed a finta to the Portuguese treasury of 96,000 Mexican dollars, although this was difficult to collect. It was governed by a king or liurai who was confirmed in his position by the Portuguese governor. Manufahi's agriculturalists produced horses, sheep, cereals, fruit, coffee and tobacco. Its craftsmen were the finest silver and goldsmiths in Portuguese Timor, manufacturing bracelets and anklets. There were also skilled pyrographers working bamboo pipes. More ominously, Manufahi produced leather cartridge belts and musket shot, materials that could be put to use in a revolt. The countrywide conflict of 1911-12 was the culmination of a series of revolts led by Manufahi. The first, which took place during the reign of Dom Duarte, Boaventura's father, lasted from 1894 to 1901 and the second from 1907 to 1908. The west and north of Manufahi was the reino of Suru, centred on the mountain of Tatamailau. It had only been subdued by the Portuguese and subjugated to the reino of Atsabe in 1900. In 1907, the liurai of Suru, Naicau, petitioned the Portuguese for independence from Atsabe and it was granted. Naicau would prove loyal to the Portuguese and a thorn in Manufahi's side.

How many years did the reign of Dom Duarte last?
Answer: 7

Problem: Marriage rates began declining from almost 71 per 1,000 inhabitants in 1981 until 2002, only to increase slightly in 2003 to 61 per 1,000 and then fall again to 51 in 2004. Moreover, divorce rates have seen an increase from 191.2 per 1,000 marriages in 1991 to 239.5 per 1,000 marriages in 2004. As a result of these trends, the average Greek household is smaller and older than in previous generations.

How many higher was the divorce rates in 2004 compared to 1991?
Answer:
48.3