Article: San Diego was ranked as the 20th-safest city in America in 2013 by Business Insider. According to Forbes magazine, San Diego was the ninth-safest city in the top 10 list of safest cities in the U.S. in 2010. Like most major cities, San Diego had a declining crime rate from 1990 to 2000. Crime in San Diego increased in the early 2000s. In 2004, San Diego had the sixth lowest crime rate of any U.S. city with over half a million residents. From 2002 to 2006, the crime rate overall dropped 0.8%, though not evenly by category. While violent crime decreased 12.4% during this period, property crime increased 1.1%. Total property crimes per 100,000 people were lower than the national average in 2008.

Question: What happened to the crime rate in San Diego between 1990 and 2000?
Ans: San Diego had a declining crime rate from 1990 to 2000

Article: The heavy infantry of the maniples were supported by a number of light infantry and cavalry troops, typically 300 horsemen per manipular legion. The cavalry was drawn primarily from the richest class of equestrians. There was an additional class of troops who followed the army without specific martial roles and were deployed to the rear of the third line. Their role in accompanying the army was primarily to supply any vacancies that might occur in the maniples. The light infantry consisted of 1,200 unarmoured skirmishing troops drawn from the youngest and lower social classes. They were armed with a sword and a small shield, as well as several light javelins.

Question: How many horseman were likely to be found in a single manipular legion?
Ans: 300 horsemen

Article: In recent Mercer's 2015 annual quality-of-living survey, New Delhi ranks at number 154 out of 230 cities due to bad air quality and pollution. The World Health Organization ranked New Delhi as the world's worst polluted city in 2014 among about 1,600 cities the organization tracked around the world.

Question: New Delhi was ranked as the world's worst polluted city by what organization?
Ans: The World Health Organization

Article: During his brief majority reign, Murad IV (16121640) reasserted central authority and recaptured Iraq (1639) from the Safavids. The resulting Treaty of Zuhab of that same year decisively parted the Caucasus and adjacent regions between the two neighbouring empires as it had already been defined in the 1555 Peace of Amasya. The Sultanate of women (16481656) was a period in which the mothers of young sultans exercised power on behalf of their sons. The most prominent women of this period were Kosem Sultan and her daughter-in-law Turhan Hatice, whose political rivalry culminated in Kosem's murder in 1651. During the Koprulu Era (16561703), effective control of the Empire was exercised by a sequence of Grand Viziers from the Koprulu family. The Koprulu Vizierate saw renewed military success with authority restored in Transylvania, the conquest of Crete completed in 1669, and expansion into Polish southern Ukraine, with the strongholds of Khotyn and Kamianets-Podilskyi and the territory of Podolia ceding to Ottoman control in 1676.

Question: What years define the Koprulu Era?
Ans:
16561703