These are the skills that are transferred through speech in the form of stories. They include things we can do because we are told how to do them without needing to watch them being done. Early schooling mostly utilizes speech, while later schooling combines speech with reading.
Humanity as species, i.e. the population with compatible genomes, split into distinct language groups, generally with a common set of myths, religions, and heroic tales and relatively few distinct skill sets across the language group, but sometimes fairly distinct between language groups. For large language groups, the population might be divided into castes or classes, each with fairly distinct skill sets.
We focus primarily on sound-enhanced and evoked skills, and conjecture about pre-human evolutionary stages.
Parts of the mechanism for evolution:
Skills: to model as illustration
Prerequisites for the mechanisms and processes of evolution:
Speech-based functions required for subsequent skills: