out of its centerfold picture spreads; this new addition caused the magazine to hit its all-time peak circulation of more than seven million copies in 1972 and men started having more choices when it came to magazines. In 1972 Deep Throat became a popular movie for heterosexual couples. The movie played all over America and was the first porn movie to earn a gross of a million dollars. Pornography was less stigmatized by the end of the 1980s, and more mainstream movies depicted sexual intercourse as entertainment. Magazines depicting nudity, such as the popular Playboy and Penthouse magazines, won some acceptance as mainstream journals, in which public figures felt safe expressing their fantasies. Some figures in the feminist movement, such as Andrea Dworkin, challenged the depiction of women as objects in these pornographic or "urban men's" magazines. Other feminists such as Betty Dodson went on to found the pro-sex feminist movement in response to anti-pornography campaigns. In India, an organization named Indians For Sexual Liberties is advocating the legalization of the porn business in India. The organization's founder, Laxman Singh, questioned the reasoning behind deeming as illegal the depiction of legal acts. Modern revolutions The Industrial Revolution during the nineteenth century and the growth of science and technology, medicine and health care, resulted in better contraceptives being manufactured. Advances in the manufacture and production of rubber made possible the design and production of condoms that could be used by hundreds of millions of men and women to prevent pregnancy at little cost. Advances in chemistry, pharmacology, and biology, and human physiology led to the discovery and perfection of the first oral contraceptives, popularly known as "the Pill." All these developments took place alongside and combined with an increase in the world literacy and a decline in religious observance. Old values such as the biblical notion of "be fruitful and multiply" were cast aside as people continued to feel alienated from the past and adopted the lifestyles of progressive modernizing cultures. Another contribution that helped bring about this modern revolution of sexual freedom were the writings of Herbert Marcuse and Wilhelm Reich, who took the philosophy of Karl Marx and similar philosophers. "No-fault" unilateral divorce became legal and easier to obtain in many countries during the 1960s, 1970s, and 1980s. The women's movement redefined sexuality, not in terms of simply pleasing men but recognizing women's sexual satisfaction and sexual desire. The