P: Constantinople had been an imperial capital since its consecration in 330 under Roman Emperor, Constantine the Great. In the following eleven centuries, the city had been besieged many times but was captured only once: during the Fourth Crusade in 1204.:304 The crusaders established an unstable Latin state in and around Constantinople while the remaining empire splintered into a number of Byzantine successor states, notably Nicaea, Epirus and Trebizond. They fought as allies against the Latin establishments, but also fought among themselves for the Byzantine throne. The Nicaeans eventually reconquered Constantinople from the Latins in 1261. Thereafter, there was little peace for the much-weakened empire as it fended off successive attacks by the Latins, the Serbians, the Bulgarians, and, most importantly, the Ottoman Turks. The Black Plague between 1346 and 1349 killed almost half of the inhabitants of Constantinople. The city was severely depopulated due to the general economic and territorial decline of the empire, and by 1453 consisted of a series of walled villages separated by vast fields encircled by the fifth-century Theodosian walls. By 1450 the empire was exhausted and had shrunk to a few square miles outside the city of Constantinople itself, the Princes' Islands in the Sea of Marmara, and the Peloponnese with its cultural center at Mystras. The Empire of Trebizond, an independent successor state that formed in the aftermath of the Fourth Crusade, also survived on the coast of the Black Sea.
Answer this: How many years after the Black Plague was Constantinople depopulated to the point where it was a series of walled villages?

A: 104


P: In 1714, Peter the Great sent a party of shipbuilders to Okhotsk to allow faster access to the furs of Kamchatka. In 1715, they built the Vostok and in 1716–17 Kozma Sokolov sailed it to Kamchatka. For the next 145 years Okhotsk was the main Russian seaport on the Pacific, supplying Kamchatka and other coastal settlements. In 1731 the Siberian Military Flotilla was established here. In 1736, Okhotsk was moved two miles downstream to a spit of land at the mouth of the Okhota, converting the ostrog (fortress) into a proper port. Vitus Berings two Pacific expeditions (1725–1729 and 1733–1742) brought in large numbers of people and the first scholars and expert sailors and led to a great deal of building. In 1742 there were 57 buildings, 45 other buildings in the Berings "expedition settlement" and eight ships in the harbor. Anton de Vieira, of Portuguese people origin (son of a Jewish father and Christian mother), was the towns governor at that time. From 1737 to 1837 there was a salt works several miles west on the coast that produced 14–36 tons annually. In 1827 it was worked by 150 exiles and about 100 guards and overseers.
Answer this: How many years were 14-36 tons annually of salt produced?

A: 100


P: Success in marriage has been associated with higher education and higher age. 81% of college graduates, over 26 years of age, who wed in the 1980s, were still married 20 years later. 65% of college graduates under 26, who married in the 1980s, were still married 20 years later. 49% of high school graduates under 26 years old, who married in the 1980s, were still married 20 years later. 2.9% of adults age 35–39 without a college degree divorced in the year 2009, compared with 1.6% with a college education. A population study found that in 2004 and 2008, liberal-voting states have lower rates of divorce than conservative-voting states, possibly because people in liberal states tend to wait longer before getting married. An analysis of this study found it to be misleading due to sampling at an aggregate level. It revealed that when sampling the same data by individuals, Republican-leaning voters are less likely to have a divorce or extramarital affair than Democratic-leaning voters and independents.
Answer this: How many percent more college graduates under 26 were still married after twenty years than high school graduates of the same age?

A:
16