North Africa is a textbook example of the law of unintended consequences; the ripple effect. Every action has consequences and changes the world in some way. These changes then cause more effects, which further change the world, and so on. North Africa demonstrates this perfectly.
The people of Egypt were dissatisfied with Hosni Mubarak, and through their protests forced him to step down. In so doing,
Mubarak showed that he actually cared about his people, about his country, about something other than maintaining his power. Inspired by this example, the people of Libya realized that they, too, could overthrow their tyrant, and also took to the streets.