The middle class. because they wanted their own power and control.
The factors favored was that they were free to the land.
Demeter, the Goddess of the Harvest. What happened was that Demeter wanted to get her daughter back from Hades, so she took a "resignation" from her duties as the harvest goddess and all plants were decaying on Earth, and droughts started.
The fossil fuels formed hundreds of millions of years ago from the remains plants and animals called prehistoric