On 27 June 1977, the Seoul Metropolitan Government suggested that the cities of Seoul (the capital of South Korea) and Tehran (the capital of pre-revolutionary Iran) exchange the names of streets on the occasion of the visit to South Korea of Gholamreza Nikpey, the Mayor of Tehran. The following year, Samneungno street was renamed Teheran-ro, which then ran through a relatively underdeveloped area that been annexed into Seoul in 1963.