QUES: One of the earliest sexual orientation classification schemes was proposed in the 1860s by Karl Heinrich Ulrichs in a series of pamphlets he published privately. The classification scheme, which was meant only to describe males, separated them into three basic categories: dionings, urnings and uranodionings. An urning can be further categorized by degree of effeminacy. These categories directly correspond with the categories of sexual orientation used today: heterosexual, homosexual, and bisexual. In the series of pamphlets, Ulrichs outlined a set of questions to determine if a man was an urning. The definitions of each category of Ulrichs' classification scheme are as follows:

What three categories are used in Ulrichs scheme?
What is the answer?
ANS: dionings, urnings and uranodionings
QUES: The city and surrounding area suffered the bulk of the economic damage and largest loss of human life in the aftermath of the September 11, 2001 attacks when 10 of the 19 terrorists associated with Al-Qaeda piloted American Airlines Flight 11 into the North Tower of the World Trade Center and United Airlines Flight 175 into the South Tower of the World Trade Center, and later destroyed them, killing 2,192 civilians, 343 firefighters, and 71 law enforcement officers who were in the towers and in the surrounding area. The rebuilding of the area, has created a new One World Trade Center, and a 9/11 memorial and museum along with other new buildings and infrastructure. The World Trade Center PATH station, which opened on July 19, 1909 as the Hudson Terminal, was also destroyed in the attack. A temporary station was built and opened on November 23, 2003. A permanent station, the World Trade Center Transportation Hub, is currently under construction. The new One World Trade Center is the tallest skyscraper in the Western Hemisphere and the fourth-tallest building in the world by pinnacle height, with its spire reaching a symbolic 1,776 feet (541.3 m) in reference to the year of American independence.

How many firefighters died in the World Trade Center attack?
What is the answer?
ANS: 343
QUES: According to the 2014 United States Census estimates, there were 1,560,297 people residing in the City of Philadelphia, representing a 2.2% increase since 2010. From the 1960s up until 2006, the city's population declined year after year. It eventually reached a low of 1,488,710 residents in 2006 before beginning to rise again. Since 2006, Philadelphia added 71,587 residents in eight years. A study done by the city projected that the population would increase to about 1,630,000 residents by 2035, an increase of about 100,000 from 2010.

When was the low point in Philadelphia's population?
What is the answer?
ANS:
2006