There is also a particular rhetorical use of the term 'revolution' to which attention should be drawn and that is revolution as a necessary myth in the political culture or history of a society. This is where, definitionally, a revolution has not occurred, but those in power claim that it has in order to justify particular policies in 'the name of the revolution' or more generally to legitimise their claim to power. For example, the leaders of many developing countries refer to the winning of independence from the colonial power as a revolution, as in some cases it may have been, but in others clearly was not.
1628, with the Petition of Right, and ending in 1689, with the passing of the Bill of Rights on the Act of Toleration. The French Revolution he dates from 1751, when work began on the French Encyclopaedia which challenged the prevailing ideology, and ending in 1884, with the legalisation of trade unions. The Russian Revolution is dated from 1818, when the Drst secret revolutionary association was formed, and, at the time Krejci was writing, was still continuing. The dates, and more especially the events, he chooses to denote the beginning and end of particular revolutions are open to question, but this is less important than acknowledging the prolonged nature and impact of revolutions.