A look at the opening of the Saint Lawrence Seaway in 1959 - a system of locks, canals and channels that permits ocean-going vessels to travel from the Atlantic Ocean to the Great Lakes of North America.
This film was first broadcast: 1959
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Start your journey of discovery with Our History, as we bring you eye-opening documentaries and educational programmes about our world history. We will guide you through awe-inspiring events from our past and help you get a deeper understanding of current affairs and global events that have shaped the world we live in today.
Content distributed by ITV Studios.
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