What Happened on September 29?
September 29 is World Heart Day — promoting heart health worldwide — on the same date London's Metropolitan Police began in 1829, CERN was founded in 1954, and Congress established the U.S. Army under the Constitution in 1789.
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1789 — Congress establishes the U.S. Army under the new Constitution
On September 29, 1789, Congress passed an act recognizing the U.S. Army — building a peacetime force under constitutional authority. Read the full story →
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1829 — London's Metropolitan Police begins operations
On September 29, 1829, London's Metropolitan Police — organized by Sir Robert Peel — began duty, founding modern policing. Read the full story →
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1913 — Inventor Rudolf Diesel disappears at sea
On September 29, 1913, Rudolf Diesel vanished from a steamer in the English Channel — leaving mystery around the diesel engine's inventor. Read the full story →
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1954 — CERN, the European Organization for Nuclear Research, is founded
On September 29, 1954, CERN's convention entered into force — creating Europe's great particle-physics laboratory. Read the full story →
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1966 — Chevrolet introduces the Camaro
On September 29, 1966, Chevrolet unveiled the Camaro — a pony car built to rival the Ford Mustang. Read the full story →
Famous birthdays
Enrico Fermi (1901–1954) · Miguel de Cervantes (1547–1616) · Jerry Lee Lewis (1935–2022) · Kevin Durant (1988)
Days & observances
World Heart Day · National Coffee Day · International Day of Awareness of Food Loss and Waste · National Attend Your Grandchild Day