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  1. How does leap day work? Your every-four-years refresher : NPR

  2. Leap Day: What it means and what would happen without it | AP …

  3. What is a leap year, and why do they happen? Everything to know …

  4. What is a leap day? All about Feb. 29, on the calendar every 4 years.

  5. Who Decided Feb. 29 Is Leap Day? | TIME

  6. Leap year 2024: What is leap day? Here's when it is, why it exists

  7. Leap Day Customs & Traditions - timeanddate.com

  8. 5 Things You May Not Know About Leap Day | HISTORY

  9. Leap year 2024: Why do we have leap years? - Vox

  10. What Is a Leap Year? | NASA Space Place – NASA Science for Kids