Rubuta ci gaba don wannan sakin layi - Samsø bai taɓa samun biranen kasuwa ba (Danish: "Købstader"), amma an ba shi gata na musamman a matsayin tsibirin. A cikin waɗannan gata akwai izinin fitar da kayayyakinsu da jirgin ruwa, wanda yawanci ana ba da shi ne ga biranen kasuwa. Muhimmancin jiragen ruwa na Samsø ya zama sananne a cikin 1600s, amma Babban Yakin Arewa a 1709-1720 ya rage rabin jiragen ruwa a tsibirin. An gina katanga da yawa da kuma scones a Samsø da tsibiran da ke kewaye da shi, wanda ya ƙara mahimmancin sojan. Yaƙe-yaƙe na Turanci
ya haifar da wani halving na Samsø ta jirgin, da kuma wani babban hit ga tsibirin ta tattalin arziki da kuma Maritime muhimmancin.