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0080 - 525 AD - Dionysius Exiguus Creates Anno Domini Dating - Does Our Time Actually Belong to Jesus?
Season 2 · Episode 80

0080 - 525 AD - Dionysius Exiguus Creates Anno Domini Dating - Does Our Time Actually Belong to Jesus?

COACH: Church Origins and Church History courtesy of the That’s Jesus Channel

January 7, 202619m 20s

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Show Notes

525 AD - Dionysius Exiguus Creates Anno Domini Dating - Does Our Time Actually Belong to Jesus?

525 AD - Dionysius Exiguus Creates Anno Domini Dating - Does Our Time Actually Belong to Jesus?

Description: In 525 AD, a humble monk named Dionysius Exiguus was tasked with building Easter tables to help the Church celebrate resurrection on the right day. For over two centuries, many churches had been counting years from the reign of Diocletian—the emperor who unleashed the Great Persecution in 303, killing countless believers and burning scriptures. Dionysius refused to continue binding the Church's sacred cycles to the memory of an impious persecutor. He proposed counting years from the birth of Jesus instead. His math was off by a few years, but precision wasn't his goal—he was making a theological claim. He stripped the persecutor out of the calendar and inserted the Savior. A generation later, Bede adopted the system in his history of the English church, and within a few generations, rulers across the Latin West began using Anno Domini in official documents. By the early 800s, the shift was sweeping across Europe—every tax record, royal decree, and church letter bore the quiet confession that Jesus was Lord of history. The calendar itself became a daily confession of faith. This episode invites us to notice whether our shared church rhythms quietly point people toward Jesus or simply fit Jesus into a schedule already claimed by something else. It presses closer to home with a gentle question: what actually gets the first claim on our time—not what we believe, but what consistently shapes our pace, focus, and availability?

Keywords: Dionysius Exiguus, Anno Domini, AD dating system, Diocletian persecution, Great Persecution, Easter tables, Bede, church history, Christian calendar, counting time, Jesus Christ, theological claim, Latin West, church unity, time and faith, calendar reform, Gregory XIII, Emperor Diocletian, martyrs, church cycles, sacred time, Lord of history, confession of faith, Alexandria, Year of Our Lord, computus, Western Christianity, spiritual rhythms, practical decisions, Jesus centered life, time management

Hashtags: #DionysiusExiguus #AnnoDomini #ADdatingSystem #DiocletianPersecution #GreatPersecution #EasterTables #Bede #ChurchHistory #ChristianCalendar #CountingTime #JesusChrist #TheologicalClaim #LatinWest #ChurchUnity #TimeAndFaith #CalendarReform #GregoryXIII #EmperorDiocletian #Martyrs #ChurchCycles #SacredTime #LordOfHistory #ConfessionOfFaith #Alexandria #YearOfOurLord #Computus #WesternChristianity #SpiritualRhythms #PracticalDecisions #JesusCenteredLife #TimeManagement

Make sure you go to ThatsJesus.org for other COACH episodes and resources. Don't forget to follow, like, comment, rate, review, subscribe, share, favorite, repost, heart, star, ring the bell, tag a friend, or whisper kind words to your device. In short, do whatever you can to trick the algorithm into thinking you care about this series. But most of all, don't forget to TUNE IN for more COACH episodes every week.

Series Description: Every episode dives into a different corner of church history. On Mondays we stay between 0-500 AD. On Wednesdays we stay between 500-1500 AD. On Friday we stay between 1500-2000 AD. Thanks for listening to COACH–where Church origins and church history actually coach us how to walk boldly with Jesus today.

CHUNK 01A–HOOK

About fifteen hundred years ago, a monk was doing what monks often did—working quietly, carefully, methodically. Line after line, he was building a map. Not of land or sea, but of time itself. Dates arranged years ahead. Cycles measured. Festivals fixed far into the future so the Church could plan with confidence—sometimes decades in advance.

This was not busywork. These dates mattered. They shaped worship, fasting, and unity. Get them wrong, and entire communities would find themselves out of step—celebrating while others mourned. In generations to come, disagreements over timing would even help fracture the Church. But that was far away. Not today.

Today, the work was routine. Familiar. Almost mechanical.

Until it wasn't.

As the numbers took shape, something unsettled him. Every year he recorded was anchored to the same reference point—an anniversary tied to violence, loss, and bloodshed. A name that carried the memory of one of the darkest chapters the Church had survived.

CHUNK 01B–CLIFFHANGER

He stopped writing.

The map was almost finished. But suddenly, the question was unavoidable.

Should the Church keep measuring its future by a past best left behind?

And if not—what would replace it?

CHUNK 02–VERBATIM INTRO

From the That's Jesus Channel–welcome to COACH - where Church origins and church history actually coach us how to walk boldly with Jesus today. I'm Bob Baulch. And on Wednesday, we stay between 500–1500 AD.

CHUNK 03–SEGUE

Today we step into 525 AD as the Church faces a question about how it marks time itself.

CHUNK 04–NARRATIVE

The first edict came from the emperor in February of 303: destroy the churches and burn the scriptures. It was the beginning of a systematic persecution that would soon order the hunt and execution of clergy. Diocletian had ruled Rome for nearly two decades, but now he turned his power against the Christians with brutal efficiency. Soldiers broke down church doors and torched buildings. Believers who refused to hand over their scriptures faced execution. Clergy were imprisoned, tortured, or killed. In North Africa, some accounts report that entire congregations were locked inside their churches and burned alive. The persecution intensified from 303 to 311, costing countless believers their lives across the empire.

When it finally ended, the Church counted its dead and began the work of rebuilding. But even in their grief, Christians needed a way to mark time—to date letters, record ordinations, calculate when to celebrate Easter. Ironically, many in the Eastern churches—especially around Alexandria—adopted a new system: years counted from Diocletian's reign. They called it the Era of Diocletian, or the Era of the Martyrs. A grim memorial to the blood that had been spilled.

Two centuries later, in the year 525, Rome was no longer the capital of an empire. The Western emperors were gone. Gothic kings ruled Italy. Yet the Church remained, and with it, the bitter irony of counting time by a persecutor's name.

Dionysius Exiguus [die-uh-NISH-ee-us ex-IG-yoo-us] was a monk in that church, known for two things: his skill with numbers and his humility. His nickname—Exiguus—literally means "the humble." When church leaders needed someone to build a reliable calendar for Easter, they asked him.

Easter's date shifted every year, tied to the moon and the spring equinox. A mistake could fracture unity—one congregation celebrating the resurrection while another still fasted. The Church used tables to track future dates, long charts listing when to celebrate for decades ahead. But every table needed a starting point. Someone had to decide how to number the years.

And still, after all that had happened, many churches were using Diocletian's reign as that starting point. Year 241 of Diocletian. Year 242 of Diocletian. Every Easter celebration carried the shadow of the man who tried to destroy it.

Dionysius refused. In his preface to his Easter tables, he made clear that he would not, as he put it, continue binding the Church's sacred cycles to the memory of an impious persecutor. He proposed something different: count the years from the incarnation of Jesus instead.

He calculated backward using gospel details and whatever records he could find. His math was off by a few years—modern scholars place Jesus' birth around 6 to 4 BC—but precision wasn't the point. Perhaps he was making a theological claim, not a scientific one. Since Western mathematics had no concept of zero yet, he started his count at Year 1. According to his calculations, he was living in the year 525—not the 241st year of Diocletian. He had stripped the persecutor out of the calendar and inserted the Savior. From then on, Christian years would be measured in relation to Jesus—either looking back to His coming or looking ahead in its light.

The change seemed small. Just a different numbering system for Easter dates. But underneath the calculation lay a quiet revolution: time itself should belong to Christ, not Caesar.

He finished his tables and sent them out. Scribes copied them. Bishops consulted them for their own regions. Slowly, without early fanfare or universal decree, his system began to move across the Western Christian world.

For the next century, Dionysius's Easter tables traveled the ancient roads of Christendom, copied in monastic scriptoria from Italy to Gaul. Then, a generation later, they reached a remote corner of the world. A monk named Bede [BEED] was writing a history of the church in Britain. He saw Dionysius's tables and recognized their significance. Rather than using the old Roman system of naming years by consuls, or the problematic Diocletian era, he adopted Dionysius's numbering as his primary way of dating the events he recorded. When he wrote about the mission to convert the Anglo-Saxons, he dated it in the year of the Lord's incarnation 597. With that simple phrase, he placed an entire nation's story within a timeline centered on Jesus.

Bede's history spread across Europe. Monasteries copied it. Scholars trusted it. Kings and bishops saw its usefulness. Within a few generations, rulers began using the same dating in official documents, especially in the Latin West. What started as a monk's Easter calculation became the normal way Western Christians marked time.

By the early 800s, the shift was sweeping across Europe. Tax records. Royal decrees. Church letters. All carried the same quiet confession at the top of the page: "Year of Our Lord." Each date bore witness—not through argument, but through use—that Jesus was Lord of history.

In the centuries that followed, the system became so embedded in the fabric of Western life that no one thought to question it. When King William of England ordered his great survey of the realm in 1086, the massive record that became known as the Domesday Book used the new dating without comment. When King Henry II of England codified his relationship with the Church in 1164, the Constitutions of Clarendon opened with the phrase "from the year of our Lord's incarnation 1164." The dating had become simply the way things were done.

Dionysius never saw any of this. He died around 544, remembered mainly for his translations of church law and for his modesty. But his tables outlasted empires. They survived the fall of kingdoms, the rise of new dynasties, and the endless churn of political power.

Centuries passed. The calendar itself needed adjustment—the Julian system was drifting out of sync with the solar year. In 1582, Pope Gregory XIII reformed the entire calendar to correct the astronomical error. He adjusted leap years. He shifted dates. But the framework—the numbering of years from the birth of Christ—remained untouched. Even scientific precision could not uproot what faith had planted.

The real question was never about math. It was about allegiance. Who gets to define time?

When you number years by emperors, emperors control the story. Every date reinforces their power, their legitimacy, their place at the center of history. When you number years by the coming of Jesus, He becomes the center. The calendar itself becomes a confession of faith.

This is why Dionysius's work mattered. Not because his calculations were perfect—they weren't. Not because he was famous or powerful—he was neither. But because the work challenged the practice of marking time by a persecutor and offered an alternative centered on Christ.

The answer changed everything.

The calendar became a daily confession. Not through decree or argument, but through the steady rhythm of ordinary life. Every contract signed. Every letter dated. Every official document sealed. Each one whispered the same truth: time itself now belonged to Christ.

Farmers planting crops by the calendar. Merchants recording debts. Kings issuing charters. Monks copying manuscripts. All of them, knowingly or not, participated in a quiet revolution that had started in a Roman monastery with a humble scholar and his Easter tables.

CHUNK 05A–SEGUE WITH CLIFFHANGER

But here's the challenge that remains: we still write those dates. We still mark our calendars with years counted from His birth. The question isn’t whether we understand the difference between AD and BC. The question is this: do we live as though our time actually belongs to Him—or did we simply learn to write "Anno Domini" for the year while giving our hours to everything else.

CHUNK 05B–CLIFFHANGER RESOLUTION

We should check our calendars.

CHUNK 06–MODERN REFLECTION

One of the quiet truths history reminds us of is that belief is often shaped long before it is spoken. Not through sermons or statements, but through systems—through the ordinary structures that organize our shared life together.

Churches today make countless practical decisions. Calendars are set. Programs are scheduled. Rhythms are established. None of it feels theological. Most of it feels neutral. Necessary. Administrative. And yet, those decisions slowly teach us what matters most without ever saying a word.

We can gather weekly in Jesus' name and still allow urgency, productivity, and efficiency to become our real guides. We can say Jesus is central while structuring our shared life around everything else. The way we plan, the pace we normalize, the things we protect, and the things we hurry past all communicate something—especially to those watching quietly from the edges.

This isn't about accusing the Church of bad intentions. Most of these patterns grow out of faithfulness, not neglect. We want to serve well. We want to be organized. We want to reach people. But history shows us how easy it is for practical tools to begin carrying spiritual weight we never intended them to bear.

At some point, the question becomes unavoidable: are our shared rhythms quietly pointing people toward Jesus—or simply fitting Jesus into a schedule already claimed by something else?

That question isn't meant to condemn the Church. It's meant to steady us. To invite us to notice what our common life is actually centered on.

And once we begin to notice that together, it naturally presses closer to home.

CHUNK 07–PERSONAL REFLECTION

It's easier to see this at a distance than it is in ourselves.

Most of us would say, without hesitation, that Jesus matters to us. We mark our lives with His name. We gather in His name. We even measure time itself from His coming. But that doesn't automatically mean He defines how our days actually unfold.

I know how easy it is to write Jesus onto the calendar and still let everything else decide how the hours are spent. Deadlines speak louder than prayer. Notifications interrupt silence. Good responsibilities slowly crowd out attentiveness. None of it feels rebellious. It just feels normal.

But when we slow down long enough to notice, a gentle question surfaces: what actually gets the first claim on my time?

Not what do I believe. Not what do I intend. But what consistently shapes my pace, my focus, and my availability.

Jesus doesn't force His way into our schedules. He invites. He waits. He meets us in ordinary moments we often rush past. And sometimes the most honest response isn't to fix anything, but simply to admit what has been quietly forming us instead.

This isn't about guilt. It's about awareness. About letting Jesus be more than a label attached to our life and allowing Him to shape how today is lived—not perfectly, not dramatically, but honestly.

Maybe the invitation is simple: to notice where our time already belongs, and to bring that truth—without defensiveness—into the presence of Jesus.

CHUNK 08–VERBATIM OUTRO

If this story of Anno Domini Dating challenged or encouraged you, share it with a friend–they might really need to hear it. Make sure you go to ThatsJesus.org for other COACH episodes and resources. Don't forget to follow, like, comment, rate, review, subscribe, share, favorite, repost, heart, star, ring the bell, tag a friend, or whisper kind words to your device. In short, do whatever you can to trick the algorithm into thinking you care about this series. But most of all, don't forget to TUNE IN for more COACH episodes every week. Every episode dives into a different corner of church history. But on Wednesday, we stay between 500–1500 AD. Thanks for listening to COACH–where Church origins and church history actually coach us how to walk boldly with Jesus today. I'm Bob Baulch with the That's Jesus Channel. Have a great day — and be blessed.

CHUNK 09A–PERSONAL HUMOR OPTIONS

It's ironic that an episode about calendars made me realize how bad I am at using mine. I can trace the history of timekeeping across centuries, but I still forget appointments unless my phone yells at me three times.

CHUNK 09B–PERSONAL HUMILITY OPTIONS

Working through this episode reminded me how easily my days get filled without much thought. I don't usually decide where my time goes—it just sort of disappears unless I slow down long enough to notice.

COACH keeps moving forward one episode at a time, and this is one of those even-year stories that leans serious and reflective. Odd-year episodes tend to be lighter and more playful, but every now and then the calendar itself asks for a quieter tone.

When I mentioned this episode to Wendy, she smiled and said, "It's funny how we're so careful with dates, but not always with days." She has a way of saying something simple that sticks with me far longer than I expect.

CHUNK 10–QUOTES AND SOURCES

Quote: "continue binding the Church's sacred cycles to the memory of an impious persecutor" (Paraphrased) Source: Blackburn, Bonnie, & Holford-Strevens, Leofranc. The Oxford Companion to the Year: An Exploration of Calendar Customs and Time-Reckoning. Oxford University Press, 1999. ISBN 9780192142313

Quote: "in the year of the Lord's incarnation 597" (Paraphrased) Source: Bede. Ecclesiastical History of the English People (Leo Sherley-Price, Trans.). Penguin Classics, 1990. ISBN 9780140445657

Quote: "Anno Domini" (Verbatim) Source: Blackburn, Bonnie, & Holford-Strevens, Leofranc. The Oxford Companion to the Year: An Exploration of Calendar Customs and Time-Reckoning. Oxford University Press, 1999. ISBN 9780192142313

Quote: "Year of Our Lord." (Verbatim) Source: Blackburn, Bonnie, & Holford-Strevens, Leofranc. The Oxford Companion to the Year: An Exploration of Calendar Customs and Time-Reckoning. Oxford University Press, 1999. ISBN 9780192142313

Quote: "from the year of our Lord's incarnation 1164." (Paraphrased) Source: Douglas, David C., & Greenaway, George W. (Eds.). English Historical Documents, 1042–1189. Oxford University Press, 1981. ISBN 9780195202359

CHUNK 11–CONTRARY AND SKEPTICAL SOURCES

Some historians argue that Dionysius Exiguus's Anno Domini system had little immediate impact and only became dominant centuries later due more to Carolingian administrative consolidation than to any theological motivation. Source: Bowersock, G. W. From Gibbon to Auden: Essays on the Classical Tradition. University of Michigan Press, 2009. ISBN 9780472116827

Some scholars contend that Anno Domini dating reflects retroactive Christian triumphalism, reading later dominance back into a modest and initially marginal calendrical proposal. Source: Markus, R. A. The End of Ancient Christianity. Cambridge University Press, 1990. ISBN 9780521339640

Others argue that Dionysius's primary motivation was purely technical—correcting Easter tables—and that theological symbolism has been overstated by later Christian historians. Source: Wallis, Faith. Bede: The Reckoning of Time. Liverpool University Press, 1999. ISBN 9780853236931

Some skeptical historians emphasize that Eastern Christian traditions largely ignored Anno Domini dating for centuries, suggesting it was not universally perceived as a theologically meaningful reform. Source: Whitrow, G. J. Time in History: Views of Time from Prehistory to the Present Day. Oxford University Press, 1988. ISBN 9780192852113

Critical scholars point out that the widespread adoption of Anno Domini coincided with expanding ecclesiastical bureaucracy and literacy, implying sociopolitical convenience rather than confessional intent drove its success. Source: Brown, Peter. The Rise of Western Christendom. Wiley-Blackwell, 2013. ISBN 9780470673551

Some modern skeptics argue that centering calendars on Jesus' birth reflects later doctrinal development rather than early Christian self-understanding, projecting medieval theology onto late antiquity. Source: Ehrman, Bart D. Lost Christianities: The Battles for Scripture and the Faiths We Never Knew. Oxford University Press, 2003. ISBN 9780195141832

A minority view suggests that Anno Domini dating functioned primarily as a cultural unifier for the Latin West rather than a conscious act of resistance against imperial memory. Source: Southern, R. W. Western Society and the Church in the Middle Ages. Penguin Books, 1970. ISBN 9780140205039

Some historians argue that calendars should be understood as neutral administrative tools and caution against attributing theological intention to chronological conventions. Source: Poole, Reginald L. Medieval Reckonings of Time. Macmillan, 1918. ISBN 9781402184639

CHUNK 12–ANCIENT ORTHODOX SOURCES

Dionysius Exiguus. Liber de Paschate (Easter Tables and Preface). 525 AD.

Bede. The Reckoning of Time (De Temporum Ratione). Translated editions, Liverpool University Press, 1999.

Bede. Ecclesiastical History of the English People. Penguin Classics, 1990.

Eusebius of Caesarea. Chronicle. Translated in various modern editions; original 4th century.

Isidore of Seville. Etymologies. Cambridge University Press (modern ed.), 2006.

CHUNK 13–MODERN ORTHODOX SOURCES

Blackburn, Bonnie, & Holford-Strevens, Leofranc. The Oxford Companion to the Year: An Exploration of Calendar Customs and Time-Reckoning. Oxford University Press, 1999.

Wallis, Faith. Bede: The Reckoning of Time. Liverpool University Press, 1999.

Finegan, Jack. Handbook of Biblical Chronology. Hendrickson Publishers, 1998.

Whitrow, G. J. Time in History: Views of Time from Prehistory to the Present Day. Oxford University Press, 1988.

Richards, E. G. Mapping Time: The Calendar and Its History. Oxford University Press, 1998.

Brown, Peter. The Rise of Western Christendom. Wiley-Blackwell, 2013.

Markus, R. A. Christianity and the Secular. University of Notre Dame Press, 2006.

Daniélou, Jean, & Marrou, Henri. The Christian Centuries, Volume 1: The First Six Hundred Years. Paulist Press, 1985.

McGinn, Bernard. The Foundations of Mysticism. Crossroad Publishing, 1991.

Holford-Strevens, Leofranc. The History of Time: A Very Short Introduction. Oxford University Press, 2005.

CHUNK 14–VERBATIM AMAZON AFFILIATE LINKS

As an Amazon Associate, I earn from qualifying purchases. This means that if you click on a link and make a purchase, I may receive a small commission at no extra cost to you.

Studio Gear & Tools: Mics, interfaces, lights, and studio bits — the practical kit behind the channel. https://www.amazon.com/hz/wishlist/ls/2JVFYS5WRTUVX?ref_=wl_share&tag=thatsjesuscha-20

Overflow & Supplemental Books: Overflow & special picks that pair with COACH episodes and study notes. https://www.amazon.com/hz/wishlist/ls/1SLMOKXPPYTQL?ref_=wl_share&tag=thatsjesuscha-20

Full-Scope Survey Shelf: Comprehensive "spine" shelf: general surveys covering the full 0–2000 arc. https://www.amazon.com/hz/wishlist/ls/21O075P7LI81V?ref_=wl_share&tag=thatsjesuscha-20

Reformations to Modern Day: Reformations, awakenings, world Christianity, and the modern church. https://www.amazon.com/hz/wishlist/ls/2YMN6OXBEXGHQ?ref_=wl_share&tag=thatsjesuscha-20

Before 1500: Monastic movements, councils, scholastic thought, and global missions before 1500. https://www.amazon.com/hz/wishlist/ls/31YCQ0B9JRS12?ref_=wl_share&tag=thatsjesuscha-20

Early Church Sources: Primary sources and top surveys from the apostolic era through the fall of Rome. https://www.amazon.com/hz/wishlist/ls/19YTUD4IK87DZ?ref_=wl_share&tag=thatsjesuscha-20

CHUNK 15–VERBATIM CREDITS

Credits Research, Writing, Editing, Hosting & Producing by: Bob Baulch Production Company: That's Jesus Channel

PRODUCTION NOTES: AI tools provide assistance, but the final product is fully credited to Bob Baulch, with all AI tools used under his direction and discretion.

AI tools may include one or more of the following, depending on the episode's needs: ChatGPT (by OpenAI) Claude (by Anthropic) Copilot (by Microsoft) Gemini (by Google) Grok (by xAI) Perplexity (by Perplexity Inc.)

These tools may assist with: Historical research, Organization and structure, Script drafting and refinement, Accuracy checks, Parameter compliance, Formatting and finalization, Full pre-publish verification

All AI-generated suggestions were reviewed, edited, accepted or rejected, and fully approved by Bob Baulch.

Sound and Visualization: Adobe Podcast Video Production (if applicable): Adobe Premiere Pro

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Production Note: All audio and video elements are added during post-production. Final historical accuracy, theological balance, and editorial decisions are the sole responsibility of Bob Baulch and That's Jesus Channel.