Combined with Feng Zhi's sonnets, this paper discusses why Du Fu's poems are called epics.
According to the Miscellanies of Zheng Chuhui in Ming Dynasty, Du Fu died of beef and liquor. In the summer of the fifth year of Dali (AD 770), Du Fu deserted to Hengzhou. On the way to Leiyang, the ship was well anchored in Tianyi Fang in case of flood. I was hungry for about ten days because of lack of food. When Nie, the magistrate of Leiyang County, learned about it, he sent beef white wine. Du Fu ate too much and died overnight. According to Mr. Guo Moruo's textual research, there must be a lot of beef sent by Nie county magistrate, but Du Fu didn't finish it all at once. In summer, it is not well refrigerated and easy to rot. The carrion is poisonous, and Du Fu may die of poisoning.