One recent revolution was the Egyptian Revolution of 2011. At the time, this event clearly seemed to be a legitimate revolution. Today, however, it is less clear if it will turn out to have been a revolution in the long run. If it does, it will have been a political revolution that often involved violence.
Strangely enough, the actual catalyst for the Egyptian Revolution did not come from within Egypt itself. Instead, it came from Tunisia. There, a man named Mohamed Bouazizi burned himself to death in protest against petty humiliations inflicted on him by government officials who were abusing their authority. His death led eventually to a revolution in Tunisia. This inspired efforts to start a similar movement in Egypt.
Egypt had been ruled for decades by a military dictatorship. The country had had three leaders, Gamal Abdel Nasser, Anwar Sadat, and Hosni Mubarak. None of them had been elected in free elections and none of them had really granted political freedoms to their people. Moreover, they had tended to run the country in corrupt ways.
Many segments of Egyptian societies (for example, both democrats and Islamists) joined the revolution. The revolution was at times peaceful and at other times violent, but it was not a revolutionary war. It is not clear if the revolution will prevail in the long term as Egypt’s military has retaken control of the country and has not yet held free elections to replace the democratically-elected president that was ousted.