Throughout the history of semi-non-instinctual life, written accounts can be found of TSCBs in the form of prophecies discovered both by magical beings and non-magical beings, sometimes in the world of thought and feeling, other times in the form of real hallucinations. Some recoveries of TSCBs even happen by a being capable of language being triggered by relics or artefacts.
What is rather unknown is that TSCBs are discovered all the time and can be found everywhere in our day to day lives without the discoverer being consciously aware of this happening.