Study of human sexuality

The study of the history of human sexuality

The work of Swiss jurist Johann Bachofen made a major impact on the study of the history of sexuality. Many authors, notably Lewis Henry Morgan and Friedrich Engels, were influenced by Bachofen, and criticized Bachofen's ideas on the subject, which were almost entirely drawn from a close reading of ancient mythology. In his 1861 book Mother Right: An Investigation of the Religious and Juridical Character
of Matriarchy in the Ancient World Bachofen writes that in the beginning human sexuality was chaotic and promiscuous. This "aphroditic" stage was replaced by a matriarchal "demeteric" stage, which resulted from the mother being the only reliable way of establishing descendence. Only upon the switch to male-enforced monogamy was paternity certainty possible, giving rise to patriarchy - the ultimate "apolloan" stage of humanity. While the views of Bachofen are not based on empirical evidence, they are important because of the impact they made on thinkers to come, especially in the field of cultural anthropology. Modern explanations of the origins of human sexuality are based in evolutionary biology, and specifically the field of human behavioral ecology. Evolutionary biology shows that the human genotype, like that of all other organisms, is the result of those ancestors who reproduced with greater frequency than others. The resultant sexual behavior adaptations are thus not an "attempt" on the part of the individual to maximize reproduction in a given situation - natural selection does not "see" into the future. Instead, current behavior is probably the result of selective forces that occurred in the Pleistocene.^[1] For example, a man trying to have sex with many women all while avoiding parental investment is not doing so because he wants to "increase his fitness", but because the psychological framework that evolved and thrived in the Pleistocene never went away.^[2]

Sources

Sexual speech—and by extension, writing—has been subject to varying standards of decorum since the beginning of history. For most of historic time writing has not been used by more than a small part of the total population of any society. Only in the 19th century and later are there societies where over half the population are basically literate. The resulting self-censorship and euphemistic forms translate today into a dearth of explicit and accurate evidence on which to base a history. There are a number of primary sources that can be collected across a wide variety of times and cultures, including the following:

• Records of legislation indicating either encouragement or prohibition
• Religious and philosophical texts recommending, condemning or debating the topic
• Literary sources, perhaps unpublished during their authors' lifetimes, including diaries and personal correspondence
• Medical textbooks treating various forms as a pathological condition
• Linguistic developments, particularly in slang.
• More recently, studies of sexuality