Explainer
Christmas culture
Creed
4 min read

Why Christmas Day is Christmas Day 

The seasons, festivals, historians and emperors have all influenced the date of Christmas.

Ryan Gilfeather explores social issues through the lens of philosophy, theology, and history. He is a Research Associate at the Joseph Centre for Dignified Work.

a had holds out a small wrapped Christmas present.

I came of age in the 2000s, a decade quite alien to us now. We saw ourselves as pioneers of technology, as the internet emerged in its prehistoric form. There was great optimism about the economy until it all went wrong in 2008. The New Atheism movement was roaring into public view, only to wane just as quickly the decade after. Growing up as a Christian, I remember spirited debates with my peers about whether science disproved Christianity and if God can be disproven. These questions have fallen out of view, just as many of its main proponents have too. Richard Dawkins rarely darkens the door of our TV screens anymore.  

However, one such moment of conflict sticks out in my mind. A friend announced to me that he had disproved the origins of Christianity. The night before he had discovered that in the third century Roman Empire, before Christianity became legal and the official religion, there was already a festival celebrating a god on the 25th of December. Instead of the birth of the Son of God, the Romans celebrated the rebirth of the Unconquered Sun — Sol Invictus. Then, in 336 under the first Christian Emperor, Constantine, that date was first celebrated as the day of the birth of Christ. My friend considered the case to be closed; surely the birth of Christ was merely a repurposing of an existing festival?  

Thankfully this shocking revelation did not pick away at the foundations of my faith. I continued, and still continue, to believe in and love the Christian God, as revealed in the Bible. Indeed, since that moment I have trained as a scholar in the history of the early Church, and have begun to see this question for what it is, a quirk of history.  

We, therefore, celebrate Christ’s birth on the 25th December on account of a quirk of history, a result of the way that Romans mapped significant events on to the waxing and waning of the light. 

The first claim that Christ was born on the 25th December appears in the third century. Sextus Julius Africanus, a Roman Christian historian, wrote an entire chronology of the world from creation to AD 221. He considered March 25th to be the date of creation, because it was the spring equinox in the Roman Calendar, a day which represents new life and new birth. For this reason, he likewise considered it to be the date of Christ’s conception in the womb. Crucially, nine months after that falls December 25th. Although I admire his logic, it is hardly a sound basis for establishing the date of our Lord’s birth. Indeed, other Christians didn’t accept this claim at the time either. 

As already mentioned, December 25th was a significant date in the Roman calendar already. It was the winter solstice, the shortest day of the year, after which the days begin to lengthen. It also shortly followed the popular Roman festival of the Saturnalia. Already endowed with significance, it is unsurprising that the Romans began to celebrate the rebirth of Sol Invictus, and the birth of another god, Mithras, on that date.  

At this time Christianity was an illegal religion, persecuted in some parts of the Roman Empire. However, in 312, the emperor Constantine converts to Christianity and in 313 makes it a legally tolerated religion. At this point he begins to invest the church and Christians with powers, wealth and privileges. Evidence from the Chronography of AD 354 suggests that Christmas was first celebrated on the 25th December in 336, during the reign of Constantine. Perhaps this was an attempt to dislodge existing pagan holidays, and replace it with a Christian one. Or, maybe the significance of the Winter solstice made that date most plausible. Indeed, it is easy to see how the commemoration of Christ coming into the world is particularly salient as the darkness begins to recede. The true answer is, of course, lost to history.  

We, therefore, celebrate Christ’s birth on the 25th December on account of a quirk of history, a result of the way that Romans mapped significant events on to the waxing and waning of the light. The true lesson here though, is that it simply doesn’t matter what the actual date of Christ’s birth was. Our records, and those available in the early church were simply not good enough for us to ever know. What matters is that God loves us so much, that he became human to bring us back to his side in everlasting joy and peace. We have no idea on what date Christ was born. But, each year the 25th December presents a time for us to remember that God became man, so that we might have everlasting life.  

Article
Art
Creed
Space
5 min read

How black holes illuminate love’s greatest story

The universe’s darkest mysteries hold strange parallels with Christ’s Passion

Jake is a former BBC journalist turned writer and speaker about art and faith.

A spital galaxy coloured red, white and black.
A composite image of Andromeda galaxy.
NASA/JPL, Public domain, via Wikimedia Commons.

Thanks to the BBC radio show In Our Time, I’ve found a new pleasure in life. It is this: to learn about the enormity of outer space, and the absurdity of what goes on there, and to share what I find with anyone who’s interested. By ‘anyone’, I mean my wife. But now that Seen & Unseen have published this, I mean you too. 

Or that mysterious cosmic rays from deep space regularly sail straight through the bodies of each of us, and scientists are baffled as to what might have created them? Did you know that a tiny, pale area of the night sky once named the ‘little smudge’, is now known to be the biggest thing anyone will ever see with the naked eye: the Andromeda galaxy? And did you know that the strength of gravity on Venus would crush you instantly? I could go on indefinitely. 

The centrepiece of all this galactic trivia, however, is reserved for black holes. Almost everything about them fascinates, baffles and scares me.  

Black holes are the remnants of dead stars that have collapsed in on themselves, creating a gravitational field so powerful that nothing – not even light – can escape. If you were to pass over its threshold, you’d be obliterated as you get pulled towards the black hole’s infinitely dense centre.  

They get even stranger though. Inside them, astrophysicists say, the laws of physics break down completely. Time and space somehow swap places, they say. And even though anything pulled in by a black hole's gravity is crushed by unimaginable force, in some sense it may be preserved and – in theory – might end up elsewhere, in a new form. It is a death that might not in fact be the end of us. 

There are many black holes – there’s one at the centre of our galaxy. But even though we can study them and develop scientific theories about them, we have not come close to grasping them in all their terrifying and monumental glory. What goes on inside them is, and perhaps always will be, an unfathomable mystery. 

This is why I’d love to see them refracted through the eyes and hearts of poets and artists, philosophers and theologians. What might their strangeness tell us about their creation, their creator? What might they tell us about how to live our lives? And if gravity at its most intense can upturn the laws of science, bamboozle great minds, and maybe even turn death into new life, then might other forces of attraction that do not adhere to known laws of physics, like love, do the same?  

Scenes from the Passion of Christ by Hans Memling.

A painting of a medieval cityscape.
Hans Memling, Public domain, via Wikimedia Commons

In dwelling on questions like these, I have found this painting to be strangely helpful. It tells a love story that – in terms of its sheer intensity, its pull upon us, its utter strangeness, its death-defying endpoint – is not a bad match for a black hole. It’s called Scenes From The Passion Of Christ, it’s by the northern European painter Hans Memling, and when I first saw it I thought it looked silly.  

Why cram onto one small canvas over twenty scenes from the final eight days of Jesus’s life on Earth? It’s like a cartoon strip without the white lines to divide up each scene. We see Jesus welcomed by a crowd, betrayed by Judas, denied by Peter, sentenced by Pilate, stripped by henchmen, humiliated by another crowd, crucified by soldiers, and buried by loved ones. We see him upending a table, praying for an escape route, sharing bread and wine, carrying a cross, emerging from the grave, and appearing to his followers.  

It reduces the crucifixion to a few square millimetres at the top. It sidelines the heart of Jesus’ story – the resurrection – to the far right edge. It shrinks Jerusalem to a tiny labyrinth resembling an MC Escher painting. It is daytime and nighttime. It is disorientating. And it is claustrophobic. But I think it is also brilliant, and it’s made me look in a new way at the strangest of weeks in the story of the world.  

By showing us so much convening at this moment in space and time, we sense how impossible it would have been for Jesus’s followers to compute anything that went on during that week. As each event unfolded, they would have had to rethink what might come next, whilst dealing with some pretty overwhelming emotions. They would have had no time or space to process any of it. It seems perfect, therefore, that in this painting, we don’t either.  

But as I look at it now, I wonder: have we actually processed these events, two thousand years later? Do Christianity’s attempts to explain everything that went on here really do justice to a story in which divine love does some of the unfathomably strange things that a black hole does? Or do these explanations tell us more about our own way of thinking than they do God’s?  

I think there is a tendency – which I see in myself and in most churches I have attended – to resist the weird, mysterious and inexplicable nature of this story. We draw heavily on logic and evidence to try and explain a story that defies both. But just as it is within the boundaries of a black hole, so it is within the frame of this painting: the old rules no longer apply. Divine love manifests itself in ways we cannot yet fathom. Pretending otherwise saps power from the story.   

At the top right corner of the painting, there is a tiny dot on the seashore. It’s the last image of Jesus in this painting. And next to it, a church. Here, the baton is being handed over from Jesus to those who follow him. The church is now the ‘body of Christ’, tasked with embodying infinite love in a world that badly needs it.  

What a daunting task. Frankly, it can be easier to believe in a bizarre series of events from two millennia ago, than in a church here and now, comprised of people as flawed as I am, that is meant to be capable of embodying a world-changing love.  

And that is why I am so drawn to black holes, and to this painting. In them, I see that impossible things can and do happen; that unfathomable mysteries are littered throughout reality; that these mysteries are not so much problems to solve as they are wonders to revel in; that the narrow, rational mindset in which I too often dwell is small and limiting; and that an overwhelming force of attraction can and will overpower anything in its way. 

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