Introduction to permanent memory: At 4 o'clock in the morning on January 30, 1981, a heart worried about the country and the people stopped beating. This shocking bad news reached Dongshan, and the people of the whole county lost their voices in pain. Comrade Gu Wenchang fundamentally changed the fate of Dongshan people's poverty and backwardness, and his image is deeply rooted in the hearts of the people.