(historical) The major technological, socioeconomic and cultural change in the late 18th and early 19th century resulting from the replacement of an economy based on manual labour to one dominated by industry and machine manufacture.

Any of several revolutionary changes that have occurred in the agricultural practices of societies throughout history.

(mathematics) A surface formed when a given curve is revolved around a given axis. If the resulting surface is a closed one, it also defines a solid of revolution.

A period in which attitudes towards sexual behavior undergo a substantial change, usually in the direction of increased liberality.

(historical) The Great Proletarian Cultural Revolution of the Communist China. / (historical) The Iran's Cultural Revolution of 1980-1987.

A period in France of radical social and political upheaval which saw the country change from a monarchy to a republic (1789–1799).

The paradigm shift, from the Ptolemaic model of the heavens based around the Earth to a heliocentric model, proposed by Nicolaus Copernicus and later supported by Galileo and others.

In order to achieve something, courtesy, long-held norms, and other such formalities must be dropped.