Coding of sexual behavior has historically been a feature of all human societies, as too; has been the policing of breaches of its mores – sexual immorality – by means of formal and informal social control.[6] Interdictions and taboos among primitive societies[7] were arguably no less severe than in traditional agrarian societies.[8] In the latter, the degree of control might vary from time to time and region to region, being least in urban settlements;[9] however, only the last three centuries of intense urbanisation, commercialisation and modernisation have broken with the restrictions of the pre-modern world,[10] in favor of a successor society of fractured and competing sexual codes and subcultures, where sexual expression is integrated into the workings of the commercial world.[11]