I. We know enough to begin
We don't know everything. We know something — and we know that what we know will change. That isn't a reason to wait. It's a reason to act on what we have while holding it loosely. What we have, right now, is this: we are one species, and we have been for a very long time. We acquired the strangest gift an animal ever got — we became aware of ourselves — and we spend most of that gift pushing each other off the raft. It's hard. It's natural; we are animals, and animals fight over convenience. But we can live better if we can see ourselves as one. The trouble is that "one species" is hard to imagine. The Omo project is an attempt to make that imagination easier — to point at the most anatomically human of us we've found so far, beside a river in the Omo valley, and say: that's where we start. So let's take a step back. Let's start the calendar a little earlier. Shall we?
II. The first of us, beside the river
So here is what we have found, and how loosely we should hold it.
In 1967, beside the Omo River in southern Ethiopia, a team led by Richard Leakey pulled fragments of skull and skeleton out of the Kibish sediments. They called the more complete of them Omo I. For decades the bones sat with an uncertain age — old, clearly, but how old depended on what anyone was willing to trust. Then in 2022 a team led by Céline Vidal did something patient and clever: instead of dating the fossil, they dated the ground. A thick layer of volcanic ash lay above the remains, and they matched its chemical fingerprint to a known eruption of the Shala volcano. The fossil had to be older than the ash that buried it. The number that came back was a minimum of roughly 233,000 years.
A minimum. Not "exactly." Not "at most." At least that old, and possibly older — and that word matters more than any other in this essay, so hold onto it.
What were these people? Not a different kind of creature edging toward us. Us. They carried the same 23 pairs of chromosomes we carry. The skull is the modern skull — the high rounded braincase, the flat face tucked under it, the small brow, the chin that no other animal on Earth has ever had. Seat one of them across the aisle on a train, and we would not look twice. This is the careful claim, and it is worth making carefully: what we recognize in Omo I is the body and the brain — the anatomically modern human. What that brain would later do — carve symbols, bury its dead with meaning, paint walls, build cities — is a different and much later story, and we will come to it. For now the claim is narrow and solid: the hardware of a human being was finished and walking around beside that river more than two thousand centuries ago.
III. A window too small
Yet when we look at our calendar, we subconsciously feel that our story is two thousand years old. That makes us feel smaller than we are, younger than we are. We don't think about it consciously, but we miss the vastness of our existence. It is like looking at a small part of the sky from our apartment window, while the whole sky sits there. And that is sad. Why not live a bigger life — why not inhale a little more air, why not live a longer calendar? So the Omo calendar is an attempt to imagine bigger. If we all live in our fictions, why not live a bigger, a more shared one?
So what is the Omo calendar? It is the same calendar we already use, only honest about where we began. We don't tear anything down. We just put back the years we left out. Add the missing two hundred and thirty thousand to the front of the count — add "23" before the current year — and 2026 becomes 232026. (We round to a clean two hundred and thirty thousand and hold it there, so the count stays steady even as new digging keeps pushing our true age older.) The same day, the same week, the same now; only the story leading up to it is restored to its full length. Nothing is lost, and everything we had quietly forgotten is returned. We don't change the date. We change how far back we are willing to look.
IV. Older than every border
We own our ancestor that we found, the one who looked like us — we go by looks, right? So be it. But there is more than looks. Omo I and we share the same 23 pairs of chromosomes. Yet 232,000 years have passed between us. We carried that same 23 to love each other, hate each other, fight each other. Why not put it on our conscious calendar?
Because that is what the "23" really is. It is the number we add to the year, yes — but it is also the number we have always been. The same 23 that joins us to Omo I is the 23 we set in front of the date. The thing we share becomes the thing we count from. We are not inventing a connection. We are only writing down one that was already there.
And once it is written down, it is hard to unsee. The borders we fight over are younger than almost everything we are. The names we divide ourselves by — nation, tribe, faith, side — arrived only in the last thin sliver of the story. Underneath all of them runs the same 23, unbroken for 232,000 years. We spent that whole inheritance learning to tell ourselves apart. The calendar asks the opposite. It asks us to count from the part that was never divided.
V. All it takes is 23
The idea is small enough to carry in a pocket. It asks for no belief, no membership, no one's permission. It asks only that we add 23.
And it really is only that. The day stays the same. The month stays the same. The week, the hour, the calendar on the wall — all of it stays exactly where it is. The only thing that changes is the year, and all we do to the year is write 23 in front of it. The tenth of June, 2026 becomes the tenth of June, 232026. Same day, same now; a longer number leading up to it. Nothing is rebuilt and nothing is lost — we simply stop dropping the first two hundred and thirty thousand years every time we write the date.
So when we write the date, let us write it long: 232026, at the top of the page, on the letter, in the corner of the photograph. The first few times it looks strange, like a typo with too many digits. Then it stops looking strange, and something quieter happens — for a second, every time, we remember how old we are. The number does the remembering for us. That is the whole trick. The idea is not argued into us; it is practiced into us, one date at a time, until the longer story feels like the normal one and the short one feels like the mistake.
VI. Stop counting backward
There is a smaller, plainer reason to do this too: the long calendar is easier to think with.
Consider the pyramids. They went up around 4,500 years ago — a number the mind can hold, because it counts forward, the way we count everything else. But the calendar files them under "2560 BC," and BC and AD are really two calendars stitched back to back: one counts down, the other counts up. So to measure the simplest thing — how long ago something happened — we cannot just subtract. We have to add a stretch of the backward calendar to a stretch of the forward one, mind the seam where they meet, and track which direction we are traveling. Two rulers laid end to end, pointing opposite ways. No wonder history feels like a foreign country.
Put that same moment on the long line instead, and it simply sits where it sits — a single point on one continuous count that runs forward from the first of us to now. One ruler, one direction, the direction time actually runs. The deep past is no longer a foreign country reached by counting backward across a seam; it becomes part of the same line we are standing on.
There is a precedent worth naming. In 1993 the scientist Cesare Emiliani proposed a "Human Era" calendar, adding ten thousand years so the count would begin near the first farms — and a popular video later carried the idea to millions, which tells us the appetite is real. But ten thousand years still starts the human story at agriculture, and so still leaves most of us out. We do not count from the first field. We count from the first of us.
VII. The past gets bigger, so do we
Something happens when the number on the page grows. We grow with it.
Held against two thousand years, our quarrels look like the whole of history. Held against two hundred and thirty-two thousand, they look like what they are — recent, small, a thin crust of disagreement over a vast shared inheritance. The same brain that learned to fear the stranger is the brain that can notice the stranger carries the same 23. We are the one animal that became aware of itself, and we have spent most of that awareness drawing lines through our own kind. A longer calendar does not erase the lines. It just places them in a larger context, where they finally look as small as they are.
Here, then, is a reason to come together that is neither a sermon nor a wish. Deep time is that reason. It is hard to stay certain of our divisions while standing in front of how long we have all been here, carrying the same 23 the whole way. The same humility that admits we do not yet know everything also admits we are far older, and far more bound to one another, than the short calendar ever let us feel. To live in species-time is to think past the next border and the next year — to see the people we are tempted to push off the raft as what they are: the latest carriers of the oldest thing we have.
We will not stop being animals who fight over convenience. But we can choose the frame we fight inside, and a larger frame makes smaller fights. The past gets bigger, and so do we.
VIII. A lens, not a law
This is a lens, not a law. No one has to ratify it, and nothing breaks if they don't. The old calendar keeps working; the meetings still happen on Tuesday. All that changes is how far back we are willing to look when we write down the day.
So the invitation is small, and it is open to anyone. Date a letter 232026. Put the long year on the wall where it can be seen. Take one fact we thought we knew — the pyramids, the first city, a grandmother's birth — and set it back on the long line, where it sits among the rest of us instead of at the supposed beginning of things. And when the longer number starts to feel like the truer one, pass it on.
We do not know everything. We never will, and that is no reason to wait. We know enough to begin: that we are one species, that we have been here far longer than we let ourselves remember, that the same 23 has been handed down through every life that ever was. The past is already that big. We only have to write it down.
So — shall we start a little earlier?