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3)monarchy is a state system, and tyranny is a way of governing
4)1)Genghis Khan - the first empire with absolute freedom of religion

In general, despite the cruelty of his hordes, Genghis Khan himself was a fairly enlightened ruler. Historians argue that the Mongolian society during the reign of Genghis Khan became truly democratic. Even a modest slave could easily rise to the army commander if he showed sufficient military prowess. The great Khan guaranteed freedom of religion, protection of the rights of Buddhists, Muslims, Christians and Hindus. Genghis Khan himself, worshiping the sky, forbade the killing of priests, monks and mullahs. He also defended the immunity of envoys and ambassadors, including the enemy, no matter what message they brought.
2)Muammar Gaddafi - Great man-made river

Gaddafi came to power as a result of the "bloodless" coup in 1969 and the flesh until 2011 in fact was the head of Libya, being not the president, but having the title of "Brotherly leader and leader of the revolution." The dictator is considered mainly for the fact that he allegedly engaged in extremely harsh persecution of oppositionists and dissenters with the regime. Gaddafi is accused of unlawful arrests, torture and even executions of anyone who disagrees with his policies. They say that he even sent assassins to other countries to deal with those of his opponents who managed to escape from Libya. Whatever it was, with respect to his country and his people, Gaddafi had a very good policy, which allowed Libya to develop substantially in economic terms. One of the most ambitious projects implemented under his rule was the Great Man-Мейд River. It was a complex network of conduits, supplying Libya with desert areas and the coast of Libya with water from the Nubian aquifer. By some estimates, this was the largest irrigation project in the history of mankind. This huge system of pipes and aqueducts, which also includes more than 1,300 wells with a depth of more than 500 meters, supplies the cities of Tripoli, Benghazi, Sirte and others, supplying 6 500 000 m of drinking water a day. The leader of socialist Libya himself called this river "The Eighth Wonder of the World".
3)Fidel Castro - Education and Medicine

The leader of the Cuban revolution, Fidel Castro came to power in 1959, turning Cuba into a country with a one-party dictatorship, forcing tens of thousands of Cubans to flee abroad. Many dissidents and opponents of the regime were in prison, and some were even sentenced to death. Many international organizations have assessed the Cuban government as one of the worst human rights violators. Nevertheless, Castro can boast of very significant achievements in governing the country. In particular - well-developed health and education systems. Despite the difficult economic situation and trade embargo on the part of the United States, Cuba has become the region's leader in terms of medicine and education. Today there are practically no uneducated citizens, which is a very serious indicator for Latin America. Medicine did not disappoint. Now in Cuba, about 800 thousand doctors. At the same time, all medical care, up to the most complex operations, is absolutely free.