<Li> Five real - life pirates mentioned are William Kidd (active 1696--99), Blackbeard (1716--18), Edward England (1717--20), Howell Davis (1718--19), and Bartholomew Roberts (1718--22). Kidd buried treasure on Gardiners Island, though the booty was recovered by authorities soon afterwards . </Li> <Li> The name "Israel Hands" was taken from that of a real pirate in Blackbeard's crew, whom Blackbeard maimed (by shooting him in the knee) simply to ensure that his crew remained in terror of him . Allegedly, Hands was taken ashore to be treated for his injury and was not at Blackbeard's last fight (the incident is depicted in Tim Powers' novel On Stranger Tides), and this alone saved him from the gallows . Supposedly, he later became a beggar in England . </Li> <Li> Silver refers to "three hundred and fifty thousand" pieces of eight at the "fishing up of the wrecked plate ships". This remark conflates two related events: first, the salvage of treasure from the 1715 Treasure Fleet which was wrecked off the coast of Florida in a hurricane; second, the seizure of 350,000 salvaged pieces of eight the following year (out of several million) by privateer Henry Jennings . This event is mentioned in the introduction to Johnson's General History of the Pyrates . </Li> <Li> Silver refers to a ship's surgeon from Roberts' crew who amputated his leg and was later hanged at Cape Coast Castle, a British fortification on the Gold Coast of Africa . The records of the trial of Roberts' men list Peter Scudamore as the chief surgeon of Roberts' ship Royal Fortune . Scudamore was found guilty of willingly serving with Roberts' pirates and various related criminal acts, as well as attempting to lead a rebellion to escape once he had been apprehended . He was, as Silver relates, hanged, in 1722 . </Li>

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