Sansanin Ussher sansanin ne a Accra, Ghana. Yaren mutanen Holland ne suka gina shi a cikin 1649 a matsayin Sansanin Crèvecœur, kuma tafiya ce ta yini daga Elmina zuwa gabacin Accra akan wani dutse mai tsaƙa tsakanin lagoon biyu. Ya kasance daya daga cikin garuruwa uku da Turawa suka gina a yankin a tsakiyar karni na 17. Sansanin Crèvecœur yana cikin yankin Gold Coast na Dutch. Yarjejeniyar Gasar Zinare ta Anglo-Dutch (1867), wacce ta ayyana wuraren tasirin a kan Gold Coast, ta tura shi ga Burtaniya a 1868. Tattaunawa don gina sansanin Dutch a wurin ya fara ne a shekara ta 1610, amma bai yi 'ya'ya ba sai daga baya. An gina Sansanin Crèvecœur a cikin 1642 a matsayin masana'anta mai sauƙi sannan kuma ya haɓaka a 1649 ta Kamfanin Dutch West India Company. An sanya masa suna bayan Sansanin Crèvecœur a cikin 's-Hertogenbosch a Jamhuriyar Dutch, wanda ya taka muhimmiyar rawa a Siege na' s-Hertogenbosch. Daya daga cikin wakilan Dutch, Henry Caerlof, ya haɓaka kyakkyawar alaƙa da Dey na Fetu, wanda ya ba Caerlof izinin gina Osu Castle a 1652 ga kamfanin Sweden na Afirka.