Researchers say they have identified four sailors who were among 129 who died during a fatal polar expedition in 1845, resolving a decades-long debate about the identity of one of the men on the mission.  The HMS Erebus and HMS Terror launched from England in 1845. The mission, led by Captain Sir John Franklin and called the Franklin Expedition, was meant to chart a passage around the top of North America.  The ships spent nearly two years trapped in Arctic ice. Despite desperate attempts to

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