Corseul was called Fanum Martis ('Temple of Mars') in Latin and was the capital of the Gallo-Roman province of Coriosolites. It was founded in 10 BC. In the 3rd and 4th centuries, like many other cities, Fanum Martis was renamed for its people, the Curiosolitae. This name change occurred as the Roman Empire weakened and paralleled a revival of the ancient Gallic gods in local religious sculptures and dedicatory inscriptions.
Monterfil, today in Corseul city centre, was the antic city’s trading area and was built on a Roman grid plan. It was laid out around a 10m wide central street and two main perpendicular lanes delineating the blocks or insulae. It was developed in the 1st century BC and remained active until the 3rd century AD when it was burnt. The site has been transformed into an elegant public garden known as Jardin des Antiques.References:
The eight towns in south-eastern Sicily, including Ragusa, were all rebuilt after 1693 on or beside towns existing at the time of the earthquake which took place in that year. They represent a considerable collective undertaking, successfully carried out at a high level of architectural and artistic achievement. Keeping within the late Baroque style of the day, they also depict distinctive innovations in town planning and urban building. Together with seven other cities in the Val di Noto, it is part of a UNESCO World Heritage Site.
In 1693 Ragusa was devastated by a huge earthquake, which killed some 5,000 inhabitants. Following this catastrophe the city was largely rebuilt, and many Baroque buildings from this time remain in the city. Most of the population moved to a new settlement in the former district of Patro, calling this new municipality 'Ragusa Superiore' (Upper Ragusa) and the ancient city 'Ragusa Inferiore' (Lower Ragusa). The two cities remained separated until 1926, when they were fused together to become a provincial capital in 1927.