a forcible overthrow of a government or social order, in favour of a new system
(in Marxism) the class struggle which is expected to lead to political change and the triumph of communism
a revolution opposing a former one or reversing its results
a large increase in crop production in developing countries achieved by the use of artificial fertilizers, pesticides, and high-yield crop varieties
the non-violent overthrow of a sovereign or government by senior officials within the ruling group
the revolution in the Russian empire in 1917, in which the tsarist regime was overthrown and replaced by Bolshevik rule under Lenin
the liberalization of established social and moral attitudes to sex, particularly that occurring in western countries during the 1960s, as the women’s movement and developments in contraception instigated changes in attitudes towards sex and women’s sexuality, and sexual equality became an aim of society
a non-violent political revolution, especially the relatively smooth change from Communism to a Western-style democracy in Czechoslovakia at the end of 1989
the transformation of British agriculture during the 18th century, characterized by the enclosure of common land and the introduction of technological innovations such as the seed drill and the rotation of crops
a political upheaval in China between 1966 and 1976 intended to bring about a return to revolutionary Maoist beliefs. Largely carried forward by the Red Guard, it resulted in attacks on intellectuals, a large-scale purge in party posts, and the appearance of a personality cult around Mao Zedong. It led to considerable economic dislocation and was gradually brought to a halt by premier Zhou Enlai
the events (1688-9) that led to the replacement, in 1689, of James II by his daughter Mary II and her husband William of Orange (who became William III) as joint monarchs. The bloodless ‘revolution’ greatly enhanced the constitutional powers of Parliament, with William and Mary’s acceptance of the conditions laid down in the Bill of Rights
the rapid development of industry that occurred in Britain in the late 18th and 19th centuries, brought about by the introduction of machinery. It was characterized by the use of steam power, the growth of factories, and the mass production of manufactured goods
the proliferation of the availability of information and the accompanying changes in its storage and dissemination owing to the use of computers
the state or condition, envisaged by Leon Trotsky, of a country’s continuing revolutionary progress being dependent on a continuing process of revolution in other countries
(in the US) a patriotic society whose aims include encouraging education and the study of US history and which tends to be politically conservative. Membership is limited to female descendants of those who aided the cause of independence
the revolution in the Russian empire in 1917, in which the tsarist regime was overthrown and replaced by Bolshevik rule under Lenin
the revolution in the Russian empire in 1917, in which the tsarist regime was overthrown and replaced by Bolshevik rule under Lenin
a solid generated by the rotation of a parabola about its axis of symmetry