Seriously,
I tend to agree with Dexter that one invention is difficult to pin down.. Fire was not so much an invention, as it was a discovery. Early man carried smoldering enbers around with him to "start" the next fire ages before he was able to use flint or whatever to start a fire from scratch as it were. Cooked meat lasted longer before spoiling than raw meat, and helped to stretch the time between hunts. A whole raft of tools, initially made of stone helped man to cut and scrape, and pound, and generally made life easier. Various catapults, bows, were important inventions and made it possible to kill game from a greater distance, and also served as either a defensive, or offensive weapons. One invention that almost never gets mentioned is rope of some kind, whether made of fibres or rawhide was very useful. This list is running longer than the time I have available so I'll ley someone else take it from here.
I tend to agree with Dexter that one invention is difficult to pin down.. Fire was not so much an invention, as it was a discovery. Early man carried smoldering enbers around with him to "start" the next fire ages before he was able to use flint or whatever to start a fire from scratch as it were. Cooked meat lasted longer before spoiling than raw meat, and helped to stretch the time between hunts. A whole raft of tools, initially made of stone helped man to cut and scrape, and pound, and generally made life easier. Various catapults, bows, were important inventions and made it possible to kill game from a greater distance, and also served as either a defensive, or offensive weapons. One invention that almost never gets mentioned is rope of some kind, whether made of fibres or rawhide was very useful. This list is running longer than the time I have available so I'll ley someone else take it from here.