A major work, Prostitution, Considered in Its Moral, Social, and Sanitary Aspects , was published by William Acton in , which estimated that the County of London had 80, prostitutes and that 1 house in 60 was serving as a brothel. These courtesans danced, sang, recited poetry and entertained their suitors at mehfils. The Church used Mary Magdalene's biblical history of being a reformed harlot to encourage prostitutes to repent and mend their ways. Oiran were courtesans in Japan during the Edo period. During this period, prostitution was also very prominent in the Barbary Coast, San Francisco as the population was mainly men, due to the influx from the Gold Rush. This legislation applied not only to the United Kingdom and France, but also to their overseas colonies. Prostitution is a significant issue in feminist thought and activism. Soliciting was made illegal by the Street Offences Act Even though medieval secular authorities created legislation to deal with the phenomenon of prostitution, they rarely attempted to define what a prostitute was because it was deemed unnecessary "to specify exactly who fell into that [specific] category" of a prostitute. They contributed to music, dance, theatre, film, and the Urdu literary tradition. Prostitutes who usually have foreign clients, such as business travelers, depend on good foreign economic conditions. And the researchers reported that the men's fantasies were more detailed and specific than those of the female respondents. In the Code of Hammurabi , provisions were found that addressed inheritance rights of women, including female prostitutes. There were some commonalities with the Greek system, but as the Empire grew, prostitutes were often foreign slaves , captured, purchased, or raised for that purpose, sometimes by large-scale "prostitute farmers" who took abandoned children.