What is the oldest ancient poem?

The longest poem is Bai Juyi's Looking at the Moon, Feeling. Since the Henan rebellion, the brothers have been separated and are all in one place. Because of the feeling of full moon, I told my book and gave it to Brother Fuliang, Brother Yu Qian and Brother Wujiang, as well as to Liv and his siblings.

1, interpretation of the topic:

Since the Henan War, there has been water transportation in the inland area of Guanzhou.

The blockage caused famine everywhere, and our brothers were separated and separated, each in one place. Because I felt something when I saw the moon, I wrote a poem to record my feelings, and gave it to the eldest brother of Fuliang, the seventh brother of Qianshui, the fifteenth brother of Wujiang, and the brothers and sisters of Fuli and Xiayi.

2. Original text:

The family business is in a year of disaster, and the brothers are scattered.

Pastoral desolation and war

Since then, my own flesh and blood has become the scum of the street.

The injured shadow is like a lonely wild goose, wandering like a broken-rooted autumn canopy.

* * * Looking at the bright moon and crying, for the heart, five places, all sick and willing.