29: Number of crew members killed when the ship sank in Lake Superior, Nov. 10, 1975

8,686: Dead weight of the ship, in tons.

56: Wind speed, in miles per hour, on the lake that day

16: Size, in feet, of the waves that helped sink the boat

20: Days it took songwriter Gordon Lightfoot to pen a pop single referring to the wreck

Sources: S.S. Edmund Fitzgerald Online (www.ssefo.com) and Wikipedia.