query: When was the Hungarian Revolution?
passage: Hungarian Revolution of 1956
The Hungarian Revolution of 1956, or Hungarian Uprising of 1956[5] (Hungarian: 1956-os forradalom or 1956-os felkelés), was a nationwide revolution against the Hungarian People's Republic and its Soviet-imposed policies, lasting from 23 October until 10 November 1956. Though leaderless when it first began, it was the first major threat to Soviet control since the USSR's forces drove Nazi Germany from its territory at the end of World War II.
passage: Hungarian Revolution of 1956
The revolt began as a student protest, which attracted thousands as they marched through central Budapest to the Parliament building, calling out on the streets using a van with loudspeakers. A student delegation, entering the radio building to try to broadcast the students' demands, was detained. When the delegation's release was demanded by the protesters outside, they were fired upon from within the building by the State Security Police, known as the ÁVH (acronym for Állam Védelmi Hatóság, literally "State Protection Authority"). One student died and was wrapped in a flag and held above the crowd. This was the start of the revolution. As the news spread, disorder and violence erupted throughout the capital.