Originally Posted by Robert Tulip

The mechanism question requires that these two wave lengths interact in some way, with a harmonic resonance causing points in the slower cycle (Great Year) to reflect the quality of the same point in the faster cycle (Year), perhaps as something like a standing wave. If the precession does produce such a standing temporal wave as the framework for terrestrial time, it should be apparent in events occurring at the same point in different cycles, ie separated by ~2147 years. Given that the effect is hitherto sub-measurable, it makes sense initially to look for it in the biggest events of history, world shaping events such as the emergence of empires and dynasties, as discussed here.