Gukpung 81(國風81) was a South Korean government hosted festival in 1981.
The Fifth Republic of South Korea tried to reduce the violent image formed by Coup d'état of December Twelfth, Coup d'état of May Seventeenth and Gwangju massacre by Gukpung 81 Festival. During Gukpung 81 Festival, Chungmu gimbap got a popularity on South Korea.
References
Gukpung 81 Wikipedia(Text) CC BY-SA