Foundation and First Mentions
The history of Split is unique in that the city effectively grew inside a single building. Although archaeologists have found traces of the Greek settlement Aspalathos (4th–3rd centuries BC), the true birth of the city is considered to be the commencement of the construction of the grand palace of the Roman Emperor Diocletian.
The complex was erected between 295 and 305 AD. Diocletian, the only Roman emperor to voluntarily abdicate power, chose this sheltered bay near his birthplace (ancient Salona) to spend his retirement. After his passing, the palace remained Roman property and subsequently became the foundation of the future city.
Key Factors of Development
The transformation of the imperial residence into a fully-fledged medieval city was driven by several important factors:
- Security and Fortification: In the 7th century, when the neighbouring provincial capital of Salona was destroyed by Avars and Slavs, the surviving residents fled behind the mighty walls of Diocletian's Palace. The high walls and towers turned the residence into an impregnable fortress-sanctuary.
- Geography: Its location on a peninsula with a deep, protected harbour facilitated the development of maritime activities. Split became a key port on the eastern coast of the Adriatic.
- Political Autonomy: Thanks to powerful fortifications and diplomacy, early Split managed to maintain a certain degree of autonomy, balancing between Byzantium, Venice, and the Croatian rulers of the hinterlands.
Early Cultural and Economic Features
In the early Middle Ages, Split represented a remarkable example of adapting antique heritage to new needs. Former imperial chambers were rebuilt into residential homes, and the wide corridors of the palace turned into narrow city streets.
The cultural and economic life of the city had its own distinct features:
- Transformation of Ancient Shrines: The Mausoleum of Diocletian, a persecutor of Christians, was paradoxically converted into the Cathedral of Saint Domnius (Duje), and the Temple of Jupiter became a baptistery. This allowed the ancient structures to be preserved in pristine condition.
- Trade Hub: The city's economy was built on transit trade. Split served as a gateway for goods moving from Bosnia and the Balkan interior to the sea and onwards to Italy.
- Production: Workshops were located in the palace basements and on the ground floors of buildings, producing olive oil, wine, and textiles, providing the city with all necessities.