The cause of revolutions of 1848 and 1849 was the rapid development of cities and the massive immigration of the peasant population, which led to unemployment, lack of money, market decline and famine. This was followed by economic crises that caused peasant and civilian populations to rebel, which eventually erupted in the spring of 1848. An interesting fact about the famous revolutions is that they took place throughout Europe at the same time. Following the revolutions in Italy and France in January and February 1848, a wave of uprisings was launched throughout Central and South-eastern Europe. The uprisings that affected the Habsburg Monarchy almost led to its breakup because of the strength of the rebel forces. In particular, the Hungarian Revolution stood out, affecting other uprisings in the Monarchy. It disrupted relations between Croatia and Hungary because of Hungary's desire to have a monopoly over Croatia. To this Ban Josip Jelačić responded by the war that ended the 1849 revolution. Another important cause that led to the situation in 1848 was the national awakening in people and a desire for unity in Germany. The peoples of Europe began to realise their nationalities and proceeded to stand up and fight for them. Although the revolutions were unsuccessful and absolutism was introduced, they still managed to abolish feudalism. According to some historians this marks the end of the Middle Ages and the beginning of the Modern history, and certainly marked a turning point in history.