Margaret Sanger began publishing in 1914, in New York, a magazine called Woman Rebel which contained a series of articles on human rights, among them was a text associated with contraception, Sanger that the very first birth control . The methods for avoiding pregnancy are very ancient, and early mechanical contraceptives were obstacles that prevented sperm from fertilizing an egg. Among them were: rock salt, sea sponges and alum. Currently the methods are varied, ranging from the restriction of sexual intercourse on days that it is possible fertilization to surgical sterilization. One of the oldest and simplest methods is the condom, used by men during intercourse. In contrast, women have a greater variety of procedures for birth control: pills that prevent ovulation, the diaphragm, a sort of ring a woman latex is placed in the cervix, the IUD, a device made of metal or plastic installed a medical professional in the uterus during a given time; spermicidal creams and gels, and surgical sterilization, whereby the tubes internal bind.
Research indicates that the promotion of education, women's work and family bakery reduce birth rates, especially in developing countries.
Thomas Robert Malthus, the British economist, said in 1798 that one day would not reach the food produced to feed the world population.
The World Health Organization launched programs contraception research and has collaborated with many countries to plan projects that guide the family formation.