Fire and Early Energy Use

Fire represents humanity's first controlled energy source, fundamentally transforming survival and settlement patterns across continents. Archaeological evidence from sites in South Africa and China suggests deliberate fire use by early hominins approximately 1.5 million years ago, though controlled fire management emerged more reliably around 400,000 years ago during the Middle Pleistocene epoch.

Applications and Development

• Cooking - made proteins more digestible, increasing caloric efficiency by roughly 30 percent
• Warmth and Protection - extended human habitation into colder regions like northern Europe and Asia
• Tool Manufacturing - heat hardened wooden implements and enabled stone tool refinement
• Social Organization - communal fires around hearths in settlements like those at Terra Amata in southern France (380,000 years ago) fostered group cohesion

The transition from wood to charcoal around 6000 BCE in Mesopotamia and Egypt created higher-temperature fuels for metallurgy. By 3000 BCE, systematic charcoal production supported bronze casting across the Mediterranean. The Nobel Prize in Chemistry (1903) recognized Pierre and Marie Curie's radioactivity research, later revealing fire's atomic origins. These early energy innovations established patterns of resource extraction and environmental management that defined subsequent human civilization.

Reference:

Wikipedia reference

https://en.wikipedia.org/wiki/history_of_energy