Eventually, the working of metals led to the discovery of alloys similar to bronze and brass . The use of instruments by early humans was partly a means of discovery and of evolution. Early people advanced from a species of foraging hominids which have been already bipedal, with a brain mass approximately one third of modern humans. Approximately 50,000 years ago, using instruments and complicated set of behaviors emerged, believed by many archaeologists to be connected to the emergence of fully modern language.
The discovery and use of fireside, a easy vitality supply with many profound uses, was a turning point within the technological evolution of humankind. Fire, fueled with wooden and charcoal, allowed early people to cook dinner their food to increase its digestibility, bettering its nutrient value and broadening the variety of foods that might be eaten. Developments in historic occasions, together with the printing press, the telephone, …