In political philosophy, the right of revolution is the right or duty of the people of a nation to overthrow a government that acts against their common interests and/or threatens the safety of the people without probable cause. Stated throughout history in one form or another, the belief in this right has been used to justify various revolutions, including the English Civil War, the American Revolution and the French Revolution.
To justify their overthrowing of the earlier Shang Dynasty, the kings of the Zhou Dynasty (1122 – 256 BC) of China promulgated the concept known as the Mandate of Heaven, that Heaven would bless the authority of a just ruler, but would be displeased and withdraw its mandate from a despotic ruler.
The Mandate of Heaven would then transfer to those who would rule best. Chinese historians interpreted a successful revolt as evidence that the Mandate of Heaven had passed on. Throughout Chinese history, rebels who opposed the ruling dynasty made the claim that the Mandate of Heaven had passed, giving them the right to revolt. Ruling dynasties were often uncomfortable with this, and the writings of the Confucian philosopher Mencius (372 – 289 BC) were often suppressed for declaring that the people have the right to overthrow a ruler that did not provide for their needs.
In Europe, one example of the emergence of a right of revolution can be traced back to Þorgnýr the Lawspeaker, who in 1018 had a dramatic confrontation with the King of Sweden. The lawspeaker claimed the King of Sweden was accountable to the people and would be overthrown by them if he continued with his unpopular war with Norway. Another example is Magna Carta, an English charter issued in 1215, that required the King to renounce certain rights and accept that his will could be bound by the law. It included a "security clause" that gave the right to a committee of barons to overrule the will of the King through force if needed. Magna Carta directly influenced the development of parliamentary democracy and many constitutional documents, such as the United States Constitution.