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.
Phoenician alphabet
The earliest known alphabetic (or "proto-alphabetic") inscriptions are the so-called Proto-Sinaitic (or Proto-Canaanite) script sporadically attested in the Sinai and in Canaan in the late Middle and Late Bronze Age. The script was not widely used until the rise of new Semitic kingdoms in the 13th and 12th centuries BC.