 and it was organized in distinct clusters separated by trenches; evidence of bovine rearing and cultivation of cereals was found.Starting from 187 B.C., an intense activity of centuriation was performed by the Romans and this is still visible nowadays in the lattice of the streets in the countryside; villae were also built in this lattice.The toponym "Solarolus" appears for the first time in 993 as the name of an acreage and only in 1138 as "Castrum Solarolii" connected with a fortification.