This Week in History · 28 Sep 2026 · 8 min

Caesar in Alexandria, Sputnik Launch & Penicillin Discovered | Sep 28–Oct 4

From Julius Caesar sailing into Alexandria to the Soviet Union launching Sputnik, this week in history reshaped empires, science, and the Space Age. Plus: Mozart's Magic Flute, Alexander Fleming's accidental discovery of penicillin, and the birth of the World Series.

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Caesar in Alexandria, Sputnik Launch & Penicillin Discovered | Sep 28–Oct 4

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On October second, forty-eight BC, Julius Caesar sailed into Alexandria, Egypt, hot on the heels of his great rival Pompey. The two Roman generals had been locked in a brutal civil war, and Caesar expected a confrontation.

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