The answer is: The Great Awakening. You're welcome :)
Leadership was a key factor in the creation of great civilization. Paca the Great was a leader that expanded Mayan power and initiated a building program that produced Mayan's finest architecture and Arts. Moctezuma's leadership played a role in building the last stage of the temple Ehecatl and he conquered some regions in Mexico. However, his leadership ended up being not so good for Aztecs when he helped Spaniards to conquer Mexico because he was convinced that Hernan Cortez was a god. Moctezuma was lapidated by his people.
Technology helps in dealing with economic emergencies like food shortage and disasters. Technology is used to study the existing environmental conditions in order for farmers to be guided with the right crops to plant at specific seasons to ensure maximum yields. In terms of disasters, technology is used for disaster risk reduction and management. This is done in order to minimize the effects that disasters have on the resources.
The main reason why revolution swept so many African nations following their independence from European rule was because there was a giant power vacuum that needed to be filled--usually by a dictator.
