Between 5500 and 4500 BCE, the Neolithic Vinča culture created abstract symbols inscribed on pottery, figurines, and clay tablets. Archaeologists identified over 700 distinct signs across sites in present-day Serbia, Romania, Bulgaria, and Greece. The linear, angular markings follow consistent patterns. The Tărtăria tablets from Romania, dated to approximately 5300 BCE, contain complex symbol arrangements. Scholars debate whether this constitutes true writing. The symbols demonstrate sophisticated symbolic communication that developed alongside cultural and technological advancements in early agricultural societies.