400,000-year-old Stone Age coal mine
In 1995 the new image of early Stone Age ancestors as systematic
hunters of large animals and coalstone rocks, rather than mere
scavengers of small game and wood fuel, emerged from a discovery in
Germany that was announced in the journal Nature. (1997)
http://www.nature.com/nature/journal/v385/n6619/abs/385767a0.html
Braunkohle (Lignite)
Flammkohle (Flame coal)
Gasflammkohle (Gas flame coal)
Gaskohle (Gas coal)
Fettkohle (Fat coal)
Esskohle (Forge coal)
Magerkohle (Non baking coal)
Anthrazit (Anthracite)
Examining material excavated in an opencast coalstone mine near
Hanover, archaeologists found 400,000-year-old wooden spears (3
complete), carving and mining tools, and the remains of more than 10
horses at the coalstone rocks hunting basecamp. (2007)
http://en.wikipedia.org/wiki/History_of_coal_mining
Garry Denke