Answer:
Explanation: Assuming you are referring to the Jamestown settlement, then it would be tobacco. John Rolfe, who married Pocahontas to keep the peace between settlers and the Indigenous people's of that region, grew a new, sweeter, milder, strain of the crop. It eventually became a currency and the exportation of it along with the popularity eventually saved Jamestown. Not sure if that's what you mean by the question, but hope it provides some further insight/information for you!