Writing system
Writing systems were preceded by proto-writing, systems of ideographic and/or early mnemonic symbols. The best known examples are:The invention of the first writing systems is roughly contemporary with the beginning of the Bronze Age in the late Neolithic 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.
Vinča symbols
The importance of these findings lies in the fact that the bulk of the Vinča symbols were created in the period between 4500 and 4000 BC, with the ones on the Tărtăria clay tablets possibly dating back to around 5300 BC (controversially dated by association). This means that the Vinča finds predate the proto-Sumerian pictographic script from Uruk (modern Iraq), which is usually considered to be the oldest known writing system, by more than a thousand years. Analyses of the symbols showed that they have little similarity with Near Eastern writing, leading to the view that these symbols and the Sumerian script probably arose independently.