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Dashed edge = started before, or continues beyond, this day
Events on Saturday 25 April 1959 1
1959Saint Lawrence Seaway opensNew waterway links the Great Lakes to the AtlanticThe Saint Lawrence Seaway, a joint project of the United States and Canada, opened to shipping, connecting the Great Lakes to the Atlantic Ocean. It allowed ocean-going vessels to reach ports deep in North America's interior. Queen Elizabeth II and President Eisenhower formally dedicated it that June.