"what happened on january 21?"
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January 21 has repeatedly marked pivotal moments—from the execution of Louis XVI in 1793 to the Concorde’s debut in 1976, a nuclear B‑52 crash in 1968, Carter’s 1977 draft‑evader pardons, and the United States’ first COVID‑19 case in 2020.
AI Consensus
Models Agreed
- Execution of King Louis XVI (1793) is consistently listed across all models. bolded
- Concorde’s entry into regular service (1976) appears in every response. bolded
- B‑52 “broken‑arrow” crash in Greenland (1968) is universally mentioned. bolded
Points of Debate
- Some models include the USS Nautilus launch (1954) while others omit it, showing a discrepancy. bolded
- The oil‑well torpedo drilling (1865) is highlighted by a few models but not universally noted. bolded
Concorde supersonic jet taking off in 1976
What Happened on January 21?
January 21 is a date that recurs in world history for a variety of landmark events spanning politics, aviation, science, and public health. Below is a concise overview organized by theme and era.
1. Political & Revolutionary Milestones
| Year | Event |
|---|---|
| 1793 | Execution of King Louis XVI by guillotine during the French Revolution. 12 |
| 1924 | Death of Vladimir Lenin, founder of the Soviet Union. 78 |
| 1977 | President Jimmy Carter grants a blanket pardon to Vietnam‑War draft evaders. 9 |
| 1861 | Jefferson Davis resigns from the U.S. Senate amid secession. 1 |
| 1720 | Treaty of Stockholm signed between Sweden and Prussia. 4 |
2. Aviation & Technological Firsts
- 1976 – The Concorde begins regular commercial supersonic service, with simultaneous take‑offs from London and Paris. 25
- 1968 – A U.S. B‑52 bomber carrying four nuclear warheads crashes into a fjord at Thule Air Base, Greenland, in a “broken‑arrow” incident. 3
- 1954 – Launch of the USS Nautilus, the world’s first nuclear‑powered submarine. 1 (noted by several models)
- 1865 – First oil well drilled using torpedoes (explosive drilling technique). 6
3. Public‑Health & Social Events
- 2020 – The United States reports its first confirmed COVID‑19 case, marking the start of the pandemic’s spread in the country. 7
4. Cultural & Observance Highlights
- National Hyaluronic Acid Day, National Granola Bar Day, and Squirrel Appreciation Day are celebrated on January 21 in the United States. 10
Quick Timeline
- 1189 – Emperor Frederick Barbarossa drowns during the Third Crusade. 1
- 1549 – Adoption of the Book of Common Prayer in England. 1
- 1900 – Canadian troops set sail for the Boer War in South Africa. 6
- 1984 – Pope John Paul II visits an Italian synagogue, a historic first. 5
These events illustrate how January 21 has repeatedly intersected with moments of profound change across continents and centuries.
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