In 1845 Sir John Franklin and 129 men set out on a mission to map the Northwest Passage . They were joined by two Inuit guides who had been with Franklin's expedition in 1845. The last known account of the expedition was in 1848 .
In 1845 Sir John Franklin and 129 men set out on a mission to map the Northwest Passage . 160 years of searching have failed to find the lost ships `` HMS Erebus '' and `` HMS Terror '' The last known account of the expedition was in 1848 .