Categories by Aristotle (384 BCE - 322 BCE)

possible kinds of things that can be the subject or the predicate of a proposition. Aristotle places every object of human apprehension under one of ten categories (known to medieval writers as the praedicamenta). Aristotle intended them to enumerate everything that can be expressed without composition or structure, thus anything that can be either the subject or the predicate of a proposition. The ten categories, or classes, are: Substance, Quantity, Quality, Relation, Place, Time, Position, State, Action and Affection. (Wikipedia)

The Categories places every object of human apprehension under one of ten categories (known to medieval writers as the praedicamenta). Aristotle intended them to enumerate everything that can be expressed without composition or structure, thus anything that can be either the subject or the predicate of a proposition.