The South African referendum of 1992 was held on 17 March 1992 in South Africa. In it, white South Africans were asked to vote in the country's last whites-only referendum to determine whether or not they supported the negotiated reforms begun by State President F.W. de Klerk two years earlier. The result of the election was a large victory for the "yes" side.
This political intervention lead to the democratic elections held in 1994 and the inauguration of the first democratically elected President of SA, Nelson Mandela.....think that this was significant in SA history.
Well you can rule out communism since that is not an economic system but a system of government. Socialism is the answer you are looking for. Socialism involves the division of everything into equal parts. No economic classes is a major trait of Socialism.
Napoleon was able to conquer much of Europe because of its proximity to France and because most of those places did not have any geographically threatening areas. The geography of Russia however led to his downfall because the climate did not allow for his success, he and his men almost froze to death before conquering Russia.
Hope this helps :)