Meaning of "prehistoric" in the context of datatypes
Thank you, mwjames and Karsten Hoffmeyer! Now I have clear the concept. I added a specification with the year from which a context is considered "prehistoric", I say in a parentheses at the end of the sentence "previous to year 10000", in Spanish "anterior al año 10000". Although as historian I could debate it hahaha. It is a joke, I understand that it is a concept to understand this limitation.