Baby Elephant Orphanage Institution, Kenya

History
The first orphanages, called "orphanotrophia", were founded in the 1st century amid various alternative means of orphan support. Jewish law, for instance, prescribed care for the widow and the orphan, and Athenian law supported all orphans of those killed in military service until the age of eighteen. Plato (Laws, 927) says: "Orphans should be placed under the care of public guardians. Men should have a fear of the loneliness of orphans and of the souls of their departed parents. A man should love the unfortunate orphan of whom he is guardian as if he were his own child. He should be as careful and as diligent in the management of the orphan's property as of his own or even more careful still." The care of orphans was referred to bishops and, during the Middle Ages, to monasteries. Many orphanages practiced some form of "binding-out" in which children, as soon as they were old enough, were given as apprentices to households. This would ensure their support and their learning an occupation.
Such practices are assumed to be quite rare in the modern Western world, thanks to improved social security such as the Social Security Act which allowed Aid to Dependent Children (ADC) to be passed. This marked a change in social attitudes. This lack of social security and failure to develop alternative ways to support vulnerable families is the key reason that orphanages remain in many other countries.
The deinstitutionalisation programme sped up in the 1950s, after a series of scandals involving the coercion of birth parents and abuse of orphans (notably at Georgia Tann's Tennessee Children's Home Society), the United States and other countries have moved to de-institutionalize the care of vulnerable children—that is, close down orphanages in favor of foster care and accelerated adoption. Moreover, as it is no longer common for birth parents in Western countries to give up their children, and as far fewer people die of diseases or violence while their children are still young, the need to operate large orphanages has decreased.