MAPS OF HISTORY · ON THIS DAY · September 20

THE DAY IN HISTORY · SEPTEMBER 20

September 20 in history

1792 — Valmy

20 Sep 1792 — A citizen army stands its ground against Prussia’s professionals in a day-long cannonade. Goethe, watching: “Here and today, a new era of world history begins.”

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1863 — Chickamauga

19–20 Sep 1863 — Bragg breaks the Union line in the north-Georgia woods — the war’s bloodiest western battle, 34,000 casualties. George Thomas’ stand as “the Rock of Chickamauga” saves the army to be besieged in Chattanooga.

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1916 — The Brusilov Offensive

4 Jun-20 Sep 1916 — Brusilov attacks everywhere at once after silent registration — no telegraphed massing, shock troops probing for soft points. Austria-Hungary loses ~750,000 men and never mounts an independent offensive again.

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