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  1. Hanukkah started on Christmas Day in 2024 in rare occurrence

  2. This holiday season features a rare calendar quirk only seen once …

  3. WATCH LIVE: National Menorah lights up for the first night of

  4. Gregorian Calendar News, Research and Analysis - The Conversation

  5. Gregorian calendar - Wikipedia

  6. A Holy Year is about to start in Rome. Here’s what that means

  7. Is It Time to Overhaul the Calendar? | Scientific American

  8. Asteroid named after pope behind Gregorian calendar reform

  9. Julian to Gregorian Calendar: How We Lost 10 Days - timeanddate.com

  10. Gregorian calendar | Definition & Facts | Britannica

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