 Despite the hospitality of Wahunsenacawh, the presence of the English settlers and perhaps a further expedition up the James River by Captain Christopher Newport provoked the Paspahegh, Weyanock, and other groups to mount a series of attacks on the fort during a period of violence lasting from May 27 to July 14, 1607.Two-thirds of the settlers died before ships arrived in 1608 with supplies and German and Polish craftsmen, who helped to establish the first manufactories in the colony.As a result, glassware became the foremost American products to be exported to Europe at the time.