Economy is based mainly on agriculture, numerous inhabitants commuting to nearby industries for work.

It could derive from Byzantine Greek στρογγύλος (strongúlos, "circular") and Lombardic wal ("palisade", akin to English wall), indicating a settlement fortified in that way.

Initially a dominion of the Girini (or Girindi) family, it was later under the seignories of Veroli and D'Aquino.

The town and countryside are dominated with the Maini, Viselli, Valeri, Tomassi, Lisi, Sementilli, DeVellis and Casagrande family lines.

During World War II it was further damaged during the German retreat from the Gustav Line.