The set of wide-ranging technological changes to agriculture in the 20th century, particularly in developing countries, which allowed for greater food production capacity.

The appearance of oxygen in the Earth's atmosphere, possibly as the result of the evolution of photosynthesis

The American Revolutionary War (1775–1783) of the contiguous southern 13 colonies of the British Empire on the east coast of the North American mainland

(Marxism) The status of a revolutionary class where it continues to push for and achieve its interests despite the political dominance of those with opposing interests.

A revolution in which a democracy is instituted, replacing a previous non-democratic government, or a revolution which is brought about through democratic means, usually without violence.

Alternative form of counterrevolution

Synonym of palace coup

Alternative form of counterrevolution

(historical, British history) The 1688 deposition of James II as King of England and Ireland and (as James VII) of Scotland and his subsequent replacement by his daughter Mary II and her Dutch husband William III (II of Scotland).

Synonym of colour revolution