This Week in History · 11 May 2026 · 9 min

Constantinople, Deep Blue & the First Vaccine | May 11–14

Eight landmark historical events from May 11–14 span the founding of Constantinople, Deep Blue's chess victory, the world's first vaccination, and Robert Smalls' daring Civil War escape. From Jamestown to the birth of Israel, this week in history reshaped civilization across every century.

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Constantinople, Deep Blue & the First Vaccine | May 11–14

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On May eleventh, three hundred and thirty, on the shores of the Bosphorus in what is now Turkey, the Emperor Constantine the Great did something extraordinary. He took the ancient Greek city of Byzantium, rebuilt it on a grand scale, and dedicated it as New Rome — the new capital of the Eastern Roman Empire.

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