The amount of uranium in the underlying rocks and soils.
And finally, the time of the year would arrive when the valley would produce crops such as wheat, barley, fruit.
Don't do anything rash until the feel-ings subside.
This new calendar was ideal because, well, it worked well for agricultural purposes as well as for knowing when to have traditional religious festivals.
So how did they keep this shorter calendar in step with the actual flooding of the Nile? The foundations of the building have subsided.
If a building is well constructed and built on solid ground, it will resist an earthquake.