There were times that oral storytelling ruled. It was a great way to tell people about their history, to settle their arguments, and to come to grasps with all sorts of aspects of the phenomena of the world around them.
Then later came along the written word with all its mysteriously looking symbols. For quite a while, just the privileged and the rich and privileged were having access to these wonders, but over time, signs, books, memos, pamphlets, cereal boxes, letters, even constitutions and countless other types of writing were appearing everywhere people turned up.
The ability to write and read now was ruling many lands. The art of oral storytelling was done away with as foolishly old-fashioned. Sure, in more casual ways people were continuing to tell stories across dinner tables, at bedtime, or around campfires, but storytelling as a great learning tool was no longer respected and became almost forgotten.