Recorded history
More complete writing systems were preceded by proto-writing. Early examples are the Jiahu symbols (c. 6600 BCE), Vinča signs (c. 5300 BCE), early Indus script (c. 3500 BCE) and Nsibidi script (c. before 500 CE). There is disagreement concerning exactly when prehistory becomes history, and when proto-writing became "true writing" However, 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 BCE. 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 3400–3200 BCE with earliest coherent texts from about 2600 BCE.
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.