Foster mean that stories often goes out of other stories, and those of poems often out of other poems.
<h3>What is the first work of literature?</h3>
One of the first and famously known literary works is said to be Sumerian and the Babylonian Epic that tells about Gilgamesh from the year c. 2150 BCE and it is one that tells about the themes of heroism, pride, and others.
Note that literary work does not just come to being. It exist based on what has been written before and there is nothing new.
Hence, Foster mean that stories often goes out of other stories, and those of poems often out of other poems.
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