--- title: "Meaning & Key Takeaway of: In the current Christian-based Gregorian…" description: "\"“In the current Christian-based Gregorian calendar the year 1 B.C. was followed by the year A.D. 1—there was no year zero. Century reckoning is therefo..." image: "https://sms4smile.com/quotes/i/3dc/neil-degrasse-tyson-143_shifted-year_in-the-current-christian-based-gregorian_824371.png" --- # In the current Christian-based Gregorian calendar the year… ![“In the current Christian-based Gregorian calendar the year 1 B.C. was followed by the year A.D. 1—there was no year zero. Century reckoning is therefore shifted by one year. Before” quote by Neil deGrasse Tyson](https://sms4smile.com/quotes/i/3dc/neil-degrasse-tyson-143_shifted-year_in-the-current-christian-based-gregorian_824371.png) [Download](https://sms4smile.com/quotes/i/3dc/neil-degrasse-tyson-143_shifted-year_in-the-current-christian-based-gregorian_824371.png) [Open image](https://sms4smile.com/quotes/i/3dc/neil-degrasse-tyson-143_shifted-year_in-the-current-christian-based-gregorian_824371.png) > ““In the current Christian-based Gregorian calendar the year 1 B.C. was followed by the year A.D. 1—there was no year zero. Century reckoning is therefore shifted by one year. Before”” [Neil deGrasse Tyson](https://sms4smile.com/quotes/author/neil-degrasse-tyson/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. The Gregorian calendar lacks a year zero, causing a one‑year shift in century calculations. **In simple terms:** No year zero shifts dates. Key Takeaway Adjust historical timelines accordingly. Themes history calendar science accuracy Mood informative analytical Type educational technical When to use this quote - academic research - teaching - publishing Key Concepts Chronology Gregorian reform Questions to Reflect On - Why was a year zero omitted? - How does this affect modern dating systems? A Different Perspective Historical conventions can cause confusion in data analysis. ★ ★ ★ ★ ★ No ratings yet ## Related quotes > [It is largely dissynchronous timing standards that have kept human beings off-balance and alienated from the natural cycles of the Earth they inhabit. The…](https://sms4smile.com/quotes/jose-arguelles/it-is-largely-dissynchronous-timing-standards-that-have-kept-human/) [Jose Arguelles](https://sms4smile.com/quotes/author/jose-arguelles/) > [By the time I was 19, punk had occurred. 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