The commune of Saint-Julien-sur-Cher is located in the south of the department of Loir-et-Cher, in the small agricultural region of Champagne Berry. As the crow flies, it is located nearly 50 km from Blois, prefecture of the department, and 9 km from Romorantin-Lanthenay, sub-prefecture.
Saint-Julien-sur-Cher is not the original name of the town. Documents dating from the 13th century confirm that it was referred to as Jahenil or Jahenuel, then Januel in the 16th century. The name of the priory Saint-Jullian (de Januel) gradually prevailed. The village was temporarily called Mont-Julien during the Revolution.
The parish has for a very long time been attached to the Duchy of Berry (Graçay, Bourges, Issoudun) then to that of Orleans.
Prehistoric period: Rare clues (cut flint, pottery, monoxyl boat) suggest that the site was occupied by prehistoric people. The proximity of the site of Bagneux, the Cher, the soil composed of flint, the relatively numerous sources can support this hypothesis.
Gallo-Roman period: The Romans occupied the entire Cher valley: locality names mark this occupation. The "chemin de la Poste" remains and ends at the ford des Biches in the direction of Romorantin. The Cher had also unearthed an interesting furnace which he took over during a flood.
From medieval times: Sarcophagi found and then disappeared in concrete do not allow us to date the (Carolingian?) Period.
Three important monuments partially remain: The Cistercian Notre-Dame d'Olivet abbey founded in 1146, the church dating from 1119, the adjacent priory overlooking the Cher.