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Sir John Franklin's crew died primarily due to a combination of factors including harsh Arctic conditions, starvation, and lead poisoning from canned food. After their ships, HMS Erebus and HMS Terror, became icebound in 1846, the crew attempted to march to safety but faced extreme weather and dwindling supplies. Many succumbed to hypothermia and malnutrition, while others may have been affected by disease and the toxic effects of the food they consumed. Ultimately, all members of Franklin's expedition perished, with no survivors to tell the tale.
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