I love you. What is the historical background of China's Song Dynasty?

1979 One day in the spring, an old man drew a circle on the South China Sea. Cities rise like myths, and golden mountains gather like magic ... ". This is the beginning of the reform and opening up in the second movement of I Love You China. There are songs, poems, blue illustrations and cartoon notes in it, which makes me involuntarily. When I read the first movement of the new life in my motherland, my heart was shocked. 1 9491June1,in the land of the old east, a nation that strives for self-improvement has stood up, and this is the new China. The birth of the new China is really not simple. How many Chinese sons and daughters have written a very touching heroic song for the motherland, and they can shed tears, which deserves our admiration. The good life now is hard-won, so we should cherish it.