20th century map of the Frisian Islands. The North Frisian Islands, separated from the mainland by the Wadden Sea. These islands are geologically different from the East Frisian islands in that they don’t mostly consist of sand and dunes, but are rather remnants of former mainland that were cut of by the rising sea as well as storm floods and human mismanagement. The whole area is influenced by the constant struggle of its inhabitants against nature, gaining, losing and reclaiming land since probably Roman times.
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