Specifically, the philosopher Empedocles proposed a theory where the Earth was composed of four elements: fire, water, air, and earth. He believed that a central core of fire was surrounded by a layer of air, then water, and finally a layer of earth. This fiery core was thought to be the source of volcanoes, earthquakes, and other natural phenomena.
While this theory is now considered incorrect, it was a significant attempt to explain the workings of the Earth at a time when scientific understanding was limited.
