The Constitution of the Czechoslovak Socialist Republic (Ústava Československé socialistické / Československej socialistickej republiky in Czech / Slovak), promulgated on 11 July 1960 as the constitutional law 100/1960 Sb., was the third constitution of Czechoslovakia, and the second of the Communist era. It replaced the 1948 Ninth-of-May Constitution and was widely changed by the Constitutional Law of Federation in 1968. It was extensively revised after the Velvet Revolution to prune out its Communist character, with a view toward replacing it with a completely new constitution. However, this never took place, and it remained in force until the dissolution of Czechoslovakia in 1992.