- 200,000 - 100,000 years ago: "This is the timeline of human history, dating back to the earliest appearance of anatomically modern humans within the fossil record. Along this line have lived 10,000 generations of Homo sapiens, all with the same brain size and bone structure, all with some capacity for complicated thought."
- 100,000 years ago: "This is when the FOXP2 gene, believed to be largely responsible for our understanding of grammar, first appeared. Because this gene must have developed within a relatively stable linguistic environment, this is strong evidence that rudimentary language existed prior to this date."
- 50,000 years ago: "...the dawn of the Upper Paleolithic. Humans are transitioning from the common hand ax to an array of specialized blade tools for hunting, dressing meat, and working hide."
- 25,000 years ago: "This is the period anthropologists call the 'cultural explosion', the sudden emergence of art. All over the world, and in a relatively short span of time, human enterprise shifted from the entirely utilitarian production of hunting tools to all things ephemeral. People began adorning themselves with bead and bone jewelry. They began making musical instruments, and cave paintings, and burying their dead. This suggests they lived rich social lives, with strong interpersonal relationships and increasingly complicated mythologies."
- 12,000 years ago: "...the dawn of agriculture in the Fertile Crescent."
- 6,000 years ago: "...the first proto-writing emerges in the form of pictograms carved into tablets and tortoise shells. Egyptian hieroglyphs and Sumerian cuneiform."
- 3,000 years ago: "...the first appearance of the Phoenician alphabet, and a genuine writing system."
His treatise was going swimmingly. He noted that memorization was a defining function of primitive societies. He cites only one example, the religious, but he could have added legal, genealogical, and some culture and historical accounts to the lists of verbage that preliterates continue to memorize even today. His "poetry telephone" analogy was a fine example of what prose, as opposed to poetry, is, although it may not have involved a failure of memory. With a very limited collective experience (i.e. either Gronk killed and ate the beast--joy!--or the beast killed and at Gronk--tragedy!), storytellers might have been intentionally varying their performances to keep audiences amused. In other words, "keeping it new" was a challenge primarily for prosers. Mr. Green mentioned efforts to preserve stories intact through memorization made easy by repetitions. Had he used the term "verbatim" he'd have rediscovered the definition of poetry. As it was, he was within a micron of it when he derailed:
"It was poetry that saved the things that mattered, before we had prose."
I suspect he meant "writing"; here is a dictionary definition of prose:
noun, adjective, verb, prosed, pros·ing.
1. the ordinary form of spoken or written language, without metrical structure, as distinguished from poetry or verse.
The implication that poetry was the only way ancient societies preserved their lore would come as a surprise to any student of, say, Greek or native North American mythologies. When the storyline or moral was what mattered prose was the preferred medium. Poetry was employed when the actual words mattered.