👉 The term "saeculum" is used in classical Greek philosophy and is a concept that refers to the time period during which a person's life span has reached its peak or reaches its maximum. It was first introduced by Aristotle in his work "De Rerum Natura et Commentarii Animalium" (On Nature, On Animals). During this period of peak physical and intellectual development, the individual is at their most capable and productive. In ancient Greece, the concept of a saec