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  1. September 17 - Wikipedia

  2. Historical Events on September 17 - On This Day

  3. On This Day - What Happened on September 17 | Britannica

  4. What Happened on September 17 - HISTORY

  5. What Happened on September 17 - On This Day

  6. Constitution Day and Citizenship Day - Wikipedia

  7. Celebrating Constitution Day - National Archives

  8. Events in History on September 17 - On This Day

  9. CONSTITUTION DAY - September 17, 2025 - National Today

  10. On this day in history - September 17 - timeanddate.com