The causes of revolution usually are because of the vicious governing of the governments, and the shabby situation people in that country had, such as poverty and starvation. There’s a very appropriate example—–The Russian Revolution. The outbreak of the Russian Revolution was that the emperor (The Tsar) made a zillion of faulty constitutions.
The things that usually occur in the revolution are the government was getting weaker and weaker, and the revolutionaries were being mightier until they were competent to beat the wicked, moldy ruler. They(revolutionaries) would sponsor a final revolution (which is the determination of which side is the winner). In the Russian Revolution, Lenin and his regiments were playing the role of revolutionaries, they obtained a mass of soldiers. And when they realised that they were formidable enough to defeat the government, they made a revolution with no hesitation, and they overwhelmed the Tsar.
There’re also some different results. Such as a partial of the Russia revolution, after the autocratic emperor “Tsar” abdicated, there’s another undemocratic emperor just came out after several years, and the circumstances were getting worse and worse. And as expected, that evil emperor had also been overridden at last.
Revolution is the overhaul of a country, the purification and refresh of people’s ideology, the termination of the incomplete constitution, and the threshold of a new dynasty. Basically, there’s no any country could be alive without the revolutions from people, and the alteration of the emperor.