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The pilot shaft of the Seikan Tunnel, the world's longest sub-aqueous tunnel (53.85 km) between the Japanese islands of Honshū and Hokkaidō, breaks through.
The Chicago Freedom Movement, co-founded by Martin Luther King Jr., holds a rally at Soldier Field in Chicago at which as many as 60,000 people attend.
The Battle of Arnemuiden, in which a French force defeats the English, is the first naval battle of the Hundred Years' War and the first naval battle in which gunpowder artillery is used.
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