The planning of the village, at least in the most important elements, concerns the patterns found in Trebiano and especially Castelnuovo Magra, which predominate in sets of houses and streets with a straight line along the ridge of hills, from which stand the volume of the church and bell tower.

According to historian Livy, 40,000 inhabitants of the Ligurian Apuan, and other 7,000 people in the Val di Magra and Vara, the Sannio, were the victims of the first deportation of history, by the consuls Cornelius Cethegus and Mario Bebio.

After the deportation, high-wealth families in Rome established their houses and properties along the coast of Luni, on Cordonata Caprione, and in the hills by Arcola Vezzano and Valerian, as recalled by Persio in his Satire.

A document from the June 10, 1033, the time of Conrad the Salic Emperor of the Holy Roman Empire, states that the family of the Marquis Adalberto Olbertenghi, race Lombard, makes donation to the monastery founded in Castiglione a portion of its assets and the "tenth" of its property located in the County of Valerian Luni.

The April 19, 1585 The Senate of the Republic of Genoa to Valeriano acknowledges the status of free town with its own statutes and rulers, who maintained even under foreign domination, both Austrian and French, until the nineteenth century which was absorbed in the administrative district of Vezzano Ligure.

Dedicated to San Apollinare, the church was blessed on July 23, 1703 and has a baptismal font in white marble cherubs, stucco altars and twisted columns in porphyry.

The building is not listed in the medieval's age Estimi of Diocese of Luni of 1470−71, nor has survived the minutes of the pastoral visit made by the delegates of the Cardinal Benedict Lomellini in 1568.