Now, under President Barack Obama, Cuba and the U.S. have begun to forge closer ties after a decades-old trade embargo, loosening economic sanctions and restoring diplomatic relations.

"Canadians imagine a special kind of relationship, because it's not one the Americans had, and it all harkens back to that Trudeau visit. We have been dining out on that idea in Cuba ever since," Robert Wright, the author of Three Nights in Havana, the definitive account of the trip, said in an interview with CBC News.