The ancient town of Salona was created in its delta. The town was supplied with water from the source of the River Jadro at the foot of Mount Mosor via a 4-kilometre-long aqueduct from the 1^st century BC. Another, 9.50-kilometre-long aqueduct that was also supplied with water from the same source was built on the Split peninsula at the same time as the construction of Diocletian’s Palace (295-305). The Early Medieval period saw the emergence of the old Croatian town of Solin alongside the river and east of the ruins of Roman Salona. This was the place where Croatian kings were crowned and buried. Today, while walking along the River Jadro, these memories of the past attest to the importance of this river throughout history.