After the return of the Karađorđević dynasty to the throne of Serbia in 1903 (following the May Overthrow), under the newly elected king Peter I Karađorđević, a single-chamber National Assembly was introduced, and the new 1903 Constitution was slightly revised version of the 1888 Constitution, annulled by Aleksandar I Obrenović in 1894.
Following the restoration of the Karađorđević dynasty to power in Serbia in 1903 (following the May Revolution), under the newly elected King Peter I Karađorđević, a single-chamber National Assembly was introduced, and the new 1903 Constitution was a revised version of the 1888 Constitution, which had been annulled by Aleksandar I Obrenović in 1894.