hendiadys is often characterized by its elevation above the ordinary tone of conventional English and by a kind of syntactical complexity that seems fathomable only by an intuitional understanding of the way the words interweave their meanings, rather than by painstaking lexical analysis.
The oldest documented use of poetry discovered so far is a large body of texts called Vedas, which originate from Ancient India around 1700BC.
Writing seems to have originated independently in China from divination practices and also independently in Mesoamerica and elsewhere. The first author of literature in the world, known by name, was the high-priestess of Ur, Enheduanna (2285-2250 BCE) who wrote hymns in praise of the Sumerian goddess Inanna.