Which dynasty is the poem "Looking at the Sea"?

See the boundless ocean

Hancaocao

On the east coast, climb Jieshi Mountain to see the vast sea. The sea is so vast that the islands stand high on the sea. Trees and paraquat are very lush. Autumn wind makes trees make sad sounds, and the sea is surging. The movement of the sun and the moon seems to come from the vast ocean. Journey to the sun and the moon, if you go out. Han is a talented star, if you take him by surprise. I am glad to use this poem to express my inner desire.

Looking at the Sea was written in the late Eastern Han Dynasty.

Viewing the Sea is a four-character poem written by Cao Cao, a poet in the late Eastern Han Dynasty. Cao Cao used a lot of romantic passion to outline the magnificent scene of the sea devouring the sun and the moon. It depicts the magnificence of the motherland's rivers and mountains, not only depicts the magnificence of mountains and seas, but also expresses the enterprising spirit of the poet who lives by heaven and cares for the world.