Mr. Boisbriant – Prairie du Rocher was founded shortly after the building of Fort Chartres, on a tract of land granted to Mr. Boisbriant. In 1743, the Prairie du Rocher commons were granted to the village. This village and that of Kaskaskia had many similarities in their development. Prairie du Rocher still stands a dreamy little village that would appear very commonplace to one unacquainted with its early importance. A queer French language is sometimes heard as one listens to the older persons. On New Year’s Eve, time seems to turn backward some two hundred years as the pageantry and costumes of those days are revived in the annual celebration.