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  1. Autumnal equinox | Definition, Dates, & Facts | Britannica

  2. When is the First Day of Fall? Autumnal Equinox 2024 - The Old …

  3. Autumn equinox is the first day of fall. How is that different from …

  4. Fall equinox 2020: What it means, and why it matters - National …

  5. The Autumnal Equinox Is Today. Fall Is Here : NPR

  6. Fall equinox: explaining the beginning of autumn, end of …

  7. When does fall start? Here's a visual guide to the autumnal equinox

  8. Equinox - National Geographic Society

  9. What is the Autumn equinox? Here's what you need to know.

  10. Autumnal Equinox and Other Sky Events: What You Need to Know