The town, unlike other Sicilian towns, clearly shows a rather modern foundation and the absence of a rich historical-artistic heritage. Nevertheless, it boasts a strong pride of belonging to the local mining history, with the princes of Trabia in its centre (and also in that of the old town). In 1575, the village had about 500 residents until when, around mid-1600, following some inheritance passages, the territory went with the princes of Trabia, who held it until the first half of the 20th Century. In the 18th Century, Sicily started the rational exploitation of sulphur beds that would take Sommatino to the top ranks among the most important mining areas of the island. On July 1883, the Grande Trabia mine was struck by the worst disaster in its history, which caused the death of 36 miners. The mining activity continued, even if, in 1957, following a firedamp explosion, a pit (Scordia) crashed, killing many people. The mine was closed in 1975. Today, it is in the process of becoming an important educational centre on the mining history of Sicily.