What conditions in Europe helped give rise to the rule of dictator?

When you say Europe, I'm suspecting your talking just about Germany. Hitler became pretty much the dictator of Germany due to Germany's bad economy and other problems it had after World War I. Hitler, with his great speeches, managed to gain large amounts of support and he soon enough he got the National Socialist Party, or the Nazis, into power. As such he quickly turned Germany into a military juggernaut and turned Germany around. Because of these things Hitler ended up being the Fuhrer or dictator of Germany with large amounts of support.