Brave New World by Aldous Huxley

Brave New World is a novel written in 1931 by Aldous Huxley and published in 1932. The novel Brave New World anticipates developments in reproductive technology and sleep-learning that combine to change society. The future society is an embodiment of the ideals that form the basis of futurology. Aldous Huxley answered this book with a reassessment in an essay, Brave New World Revisited (1958) and with his final work, a novel titled Island (1962).
In 1999, the Modern Library ranked Brave New World fifth on its list of the 100 best English-language novels of the 20th century.
The novel Brave New World opens in London in 632 (AD 2540 in the Gregorian Calendar). The vast majority of the population is unified under the World State, an eternally peaceful, stable global society in which goods and resources are plentiful and everyone is happy. Natural reproduction has been done away with and children are created, 'decanted' and raised in Hatcheries and Conditioning Centres, where they are divided into five castes (which are further split into 'Plus' and 'Minus' members) and designed to fulfill predetermined positions within the social and economic strata of the World State. Fetuses chosen to become members of the highest caste, 'Alpha', are allowed to develop naturally while maturing to term in "decanting bottles", while fetuses chosen to become members of the lower castes ('Beta', 'Gamma', 'Delta', 'Epsilon') are subjected to in situ chemical interference to cause arrested development in intelligence or physical growth. (Summary by Wikipedia)