Revolutions of 1848 in the Austrian Empire left-right spectrum. Outside the Assembly, petitions, newspapers, mass demonstrations, and political clubs put pressure on their new governments and often expressed violently many of the debates that were occurring within the assembly itself. The Czechs held a Pan-Slavic congress in Prague between June 2 and June 12, 1848. It was primarily composed of Austroslavs who wanted greater freedom within the Empire, but their status as peasants and proletarians surrounded by a German middle class doomed their autonomy . They also disliked the prospect of annexation of Bohemia to a German Empire. Insurgents quickly lost in street fighting to King Ferdinand's
2,500 year celebration of the Persian Empire to what they were originally for. The dedicated Shahyad Tower remains as a major landmark in Tehran, although it was renamed Azadi Tower in 1979. 2,500 year celebration of the Persian Empire The 2,500 year celebration of the Persian Empire (), officially known as The 2,500th year of Foundation of Imperial State of Iran (), consisted of an elaborate set of festivities that took place on 12–16 October 1971 on the occasion of the 2,500th anniversary of the founding of the Imperial State of Iran and the Achaemenid Empire by Cyrus the Great. The intent of the celebration was to