Rubuta ci gaba don wannan sakin layi - An kirkiro Biesbosch lokacin da aka rufe kilomita 300 na filayen polder a cikin ambaliyar St. Elizabeth a shekara ta 1421. Kafin wannan, ana kiran yankin Grote Hollandse Waard, wanda ke ƙunshe da filayen noma da ƙauyuka da yawa. An rushe dams fiye da ƙarni saboda rashin kulawa, saboda mawuyacin halin tattalin arziki a yankin, da kuma matsalolin da ke tsakanin ƙungiyoyin siyasa a ciki (musamman Hook da Cod (yakin basasa)
) Ya ce: