Which years did Karl Jaspers identify as the Axial Age?

Karl Jaspers identified the Axial Age as the period spanning from 800 BCE to 200 BCE.12

He introduced this concept in his work Vom Ursprung und Ziel der Geschichte (The Origin and Goal of History), noting that this era was a transformative time in human history when the fundamental intellectual, philosophical, and religious systems that shape modern civilization first emerged across the world.12