Writing
The invention of the first writing systems is roughly contemporary with the beginning of the Bronze Age of the late 4th millennium BC. The Sumerian archaic cuneiform script and the Egyptian hieroglyphs are generally considered the earliest writing systems, both emerging out of their ancestral proto-literate symbol systems from 3400 to 3200 BC with earliest coherent texts from about 2600 BC. It is generally agreed that Sumerian writing was an independent invention; however, it is debated whether Egyptian writing was developed completely independently of Sumerian, or was a case of cultural diffusion.
Bronze Age Britain
The earliest known metalworking building was found at Sigwells, Somerset, England. Several casting mould fragments were fitted to a Wilburton type sword held in Somerset County Museum. They were found in association with cereal grain dated to the 12th century BC by carbon dating.