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: COUNT 5
QSN1 Who created on of the earliest sexual classification schemes? ANS1 Karl Heinrich Ulrichs QSN2 When did Karl Heinrich Ulrichs develop this classification scheme? ANS2 in the 1860s QSN3 Was his classification scheme meant for males or females? ANS3 meant only to describe males QSN4 What three categories are used in Ulrichs scheme? ANS4 dionings, urnings and uranodionings QSN5 What did these three categories correspond with? ANS5 the categories of sexual orientation used today: