jan 1, 2100 BC - The overall period is characterized by widespread use of bronze, though the place and time of the introduction and development of bronze technology were not universally synchronous. Human-made tin bronze technology requires set production techniques. Tin must be mined (mainly as the tin ore cassiterite) and smelted separately, then added to molten copper to make bronze alloy.
Added to timeline:
Date:
jan 1, 2100 BC
Now
~ 4128 years ago