The spiritual revolution of the Axial Age had occurred against a backcloth of turmoil, migration, and conquest. It had often occurred between two imperial-style ventures. In China, the Axial Age finally got under way after the collapse of the Zhou dynasty and came to an end when Qin unified the warring states. The Indian Axial Age occurred after the disintegration of the Harappan civilization and ended with the Mauryan empire; the Greek transformation occurred between the Mycenaean kingdom and the Macedonian empire.
