In this exercise, I aim to determine whether a relationship exists between the falls of ancient empires and the eras or half-eras. To do this, I gather information about the beginnings, different periods, and the collapses of the following empires: 

• Egyptian Empire 
• Akkadian Empire 
• Indus Valley Civilisation 
• Roman Empire 

As with the use of one aeon or half an aeon to analyse the last Ice Age and the Holocene, the beginnings, period transitions, and eventual disappearance of these four civilisations also align with the peaks and troughs of eras and, in some cases, with exact quarters of an era. 

There is little to add beyond the observation that the wave frequencies of eras operate in the same way as those of suberas in the case of earthquakes, volcanoes, and solar flares, and in an identical manner to the aeon wave frequencies observed earlier. 

Fall of the Akkadian Empire 

A notable discovery dating back 4,200 years reveals that the Akkadian Empire, the first empire of Mesopotamia, fell amidst significant transformations in Egypt and the Indus Valley, the other two great civilisations of the time. 

• https://peru21.pe/ciencia/mesopotamia-cientificos-descubren-posible-causa-caida-imperio-acadio-449213-noticia

This historical event has been the subject of various studies, including research led by Stacy Carolin from the University of Oxford (United Kingdom). 

Archaeologists discovered a potential widespread climatic cause that contributed to the fall of this ancient empire through the study of stalagmites from the Gol-e-Zard cave in the Alborz Mountains of Iran. 

A stalagmite study, published in the journal PNAS, suggests that a prolonged drought may have triggered the changes leading to the fall of the Akkadian Empire. A stalagmite from the Gol-e-Zard cave, formed between 5,200 and 3,700 years ago, showed significant spikes in the magnesium-to-calcium ratio in 2487 BC and 2235 BC, coinciding with slower growth rates and shifts in the oxygen isotopes of the stone. The findings indicate a drastic increase in aridity, suggesting extended periods of low rainfall lasting 110 and 290 years, respectively, before conditions returned to normal. 

These two natural events occurred 306 years and 54 years before the fall of the Ancient Egyptian Empire, and 287 years and 35 years before the fall of the Akkadian Empire, alongside a cyclical shift in the Indus Valley civilisation. They appear to provide sufficient evidence of being key triggers. This supports the Yuga hypothesis, suggesting that during Yuga transitions—just as observed with the peaks and troughs of axial precession units—transformative events like these occur. 

Egyptian Empire Chronology

Chronology of the Indus Valley Civilization