Retranchement Retranchement Retranchement 1812 Retranchement MULTIPOLYGON(((3.367588 51.374293,3.371308 51.37139,3.375403 51.372989,3.380027 51.369113,3.386167 51.369938,3.388735 51.350651,3.410598 51.349765,3.410932 51.345366,3.401869 51.339187,3.406572 51.33666,3.40239 51.333802,3.40357 51.326449,3.377739 51.349293,3.378661 51.351197,3.370647 51.357083,3.363146 51.370799,3.367588 51.374293))) 1881 Retranchement MULTIPOLYGON(((3.367588 51.374293,3.371308 51.37139,3.375403 51.372989,3.380027 51.369113,3.386167 51.369938,3.388735 51.350651,3.410598 51.349765,3.410932 51.345366,3.401869 51.339187,3.406572 51.33666,3.40239 51.333802,3.40357 51.326449,3.408388 51.324553,3.431029 51.325295,3.418685 51.318704,3.417329 51.316883,3.409134 51.313956,3.397971 51.313317,3.388792 51.319813,3.38739 51.325633,3.380395 51.334594,3.377521 51.341197,3.367992 51.352182,3.370647 51.357083,3.363146 51.370799,3.367588 51.374293))) 1970-04-01