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It was compiled by the Indian sage Vatsyayana sometime between the second and fourth centuries CE.
His work was based on earlier Kamashastras or Rules of Love going back to at least the seventh century BCE, and is a compendium of the social norms and love-customs of patriarchal Northern India around the time he lived.
Theodoor Hendrik van de Velde's book Het volkomen huwelijk (The Perfect Marriage), published in 1926, was well known in Netherlands, Germany, Sweden and Estonia.
Most notably, Reuben dismissed popular medical-psychiatric notions of "vaginal" vs.
What sexual information was available was generally only available in the form of illicit pornography or medical books, which generally discussed either sexual physiology or sexual disorders.
The authors of medical works went so far as to write the most sexually explicit parts of their texts in Latin, so as to make them inaccessible to the general public (see Krafft-Ebing's Psychopathia Sexualis as an example).
It is a Daoist text purporting to describe how one might achieve long life and immortality by manipulating the yin and yang forces of the body through sexual techniques, which are described in some detail.
Medieval sex manuals include the lost works of Elephantis, by Constantine the African; Ananga Ranga, a 12th-century collection of Hindu erotic works; and The Perfumed Garden for the Soul's Recreation, a 16th-century Arabic work by Sheikh Nefzaoui.