Answer:
After France (1791) and Belgium (1831), Hungary became the third country of Continental Europe which held democratic elections (June, 1848), and set up a representative type of parliament which replaced the feudal estates based parliamentary system.
The crucial turning point of the events were the April laws which King Ferdinand I ratified and the new young Austrian monarch Franz Joseph I arbitrarily revoked without any legal competence. This unconstitutional act irreversibly escalated the conflict between the Hungarian parliament and Franz Joseph.
Explanation: