Solnitsata

Solnitsata, located near Provadia in modern-day Bulgaria, is a significant prehistoric archaeological site known for being the oldest salt production center in continental Europe, dating back to 5500 BCE. The site developed into the first prehistoric urban center in Europe around 4700 BCE, characterized by its defensive walls, domestic structures, and workshops. Salt production was the economic backbone of Solnitsata, contributing to its influence and wealth in the Balkans, as evidenced by nearby gold finds in the Varna Necropolis. Despite its small estimated population, Solnitsata's strategic salt trade facilitated its development into a fortified town, highlighting its role in prehistoric urbanization. Ultimately, the settlement was believed to have been destroyed by an earthquake, marking the end of its prominence around 4200 BCE.