Question: Afghanistan's Ministry of Foreign Affairs is headed by Salahuddin Rabbani, an Afghan diplomat and politician who was Minister of Foreign Affairs of Afghanistan during what time period? 
Sentence (from "Ministry of Foreign Affairs (Soviet Union)"): The MER, at the all-Union level, was established on 6 July 1923, after the signing of the Treaty on the Creation of the USSR, and was based upon the People's Commissariat for Foreign Affairs of the Russian Soviet Federative Socialist Republic (RSFSR), formed in 1917.
Relevant evidence: No