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You're probably thinking just of the US, because Alexander Mackenzie crossed North America first: https://en.wikipedia.org/wiki/Alexander_Mackenzie_(explorer) h

by Naga 7y ago

You're probably thinking just of the US, because Alexander Mackenzie crossed North America first: https://en.wikipedia.org/wiki/Alexander_Mackenzie_(explorer) https://en.wikipedia.org/wiki/Alexander_Mackenzie_(explorer)