In the United States, on 21 May 2011, the radio preacher Harold Camping had told his listeners that a great earthquake would roll across the world time zone by time zone at 6 p.m. local time, that the saved would be caught up into heaven, and that the planet would then endure five months of torment ending in its destruction on 21 October. None of it happened. The day passed quietly, and a man who had spent decades broadcasting the Bible was left, at eighty-nine and after a lifetime of credibility, exposed as a failed prophet. He died less than three years later, in December 2013, having publicly called his own date-setting “sinful.”
Camping (1921–2013) was not a tent-revival showman. He was a Christian Reformed civil engineer who had co-founded Family Radio in 1958 and built it into a network broadcasting in dozens of languages on scores of stations. His authority came from rigor, or its appearance: he taught that the Bible was a coded book whose true meaning could be unlocked by numerology, and his program “Open Forum” answered listeners’ scriptural questions for hours each night in a slow, grandfatherly drone. When such a man announced a calculated date, his audience did not hear a crank. They heard a teacher who had done the arithmetic.
The prediction was amplified by money and machinery. Family Radio and its supporters mounted one of the largest doomsday advertising campaigns ever attempted — thousands of billboards, fleets of RVs, and placards on buses and subways — much of it paid for by followers who emptied savings, quit jobs, and abandoned plans. The most public believer, a retired New York transit worker, spent roughly 140,000 dollars of his own money on subway-car posters. A young couple gave up medical school and budgeted their accounts to reach zero on 21 May.
The morning after did not destroy Family Radio, but it broke the prophecy. Camping first reinterpreted 21 May as an invisible “spiritual” judgment and held to the 21 October destruction; when that, too, passed, the reinterpretations stopped. In March 2012, his ministry posted a statement admitting it had been wrong to predict dates at all and that searching the Bible for the day of the end was sinful. It was, among modern failed prophecies, a rare and explicit recantation.
On 21 December 2012, the world did not end. The Maya Long Count calendar — an ancient Mesoamerican count of days — completed a great cycle of thirteen bʼakʼtuns and clicked over to 13.0.0.0.0, the numerical equivalent of an odometer rolling past a round figure. A New Age and pop-culture industry had spent two decades insisting that this turnover meant cataclysm or spiritual rebirth. At Maya sites in Mexico, tens of thousands of visitors watched the sun rise on an ordinary morning, and the calendar, as the Maya themselves had always understood, simply began counting again.
The belief was a modern construction laid over a genuine artifact. The Long Count, devised more than two thousand years ago, did mark 21 December 2012 as the end of a 5,125-year cycle. But no ancient Maya inscription treats that date as an apocalypse; the single monument that mentions it, Tortuguero Monument 6, is partly damaged and, scholars concluded, describes the date in poetic, ceremonial terms with no prophecy of destruction. The doomsday reading came not from the Maya but from Western authors — notably the New Age figure José Argüelles, who tied the date to his 1987 “Harmonic Convergence,” and writers who fused it with claims of a “galactic alignment.”
Onto this was grafted a far older fear: collision with a rogue planet. The “Nibiru” or “Planet X” myth, which had first predicted catastrophe in 2003, was simply rescheduled to 2012 and folded into the Maya story alongside warnings of solar storms and a sudden reversal of Earth’s poles. None of it had any scientific basis, and NASA said so repeatedly. Its “Ask an Astrobiologist” service fielded thousands of anxious questions, some from people who wrote of contemplating self-harm; the agency took the unusual step of publishing detailed rebuttals and even a video explaining why 21 December would be just another day.
The anxiety was nonetheless real and global. An Ipsos poll across twenty-one countries in 2012 found that roughly one adult in twelve had felt fear about the world ending that December, with markedly higher rates in some nations. People hoarded candles and supplies, pilgrims converged on a French village and a Serbian mountain said to offer refuge, and governments issued reassurances. Then the date arrived, the sun came up, and the most heavily marketed apocalypse of the modern era ended not in destruction but in anticlimax.
At midnight on 1 January 2000, the world’s computers were supposed to fail. For years, technologists had warned that software storing years as two digits would read “00” as 1900 rather than 2000, throwing date calculations into chaos and potentially crashing the systems that ran power grids, banks, airlines, and weapons. A genuine engineering problem became, at its fringe, an apocalyptic one — survivalists stockpiled food, water, fuel, and firearms; some religious figures cast the rollover as a divinely ordained reckoning. When the clocks turned over, almost nothing happened. There were scattered, minor glitches and no catastrophe. The Y2K scare is the rare doomsday case in which the predicted day arrived, the fear proved overblown, and the reason it proved overblown remains genuinely disputed.
The underlying bug was real and well understood. In the decades when computer memory was scarce and expensive, programmers routinely abbreviated four-digit years to two, an economy that worked until the century turned. Left unaddressed, the ambiguity could corrupt any calculation that depended on dates — interest, schedules, ages, expirations — across countless legacy systems whose original authors had long since moved on. Governments and corporations took the threat seriously enough to mount one of the largest coordinated remediation efforts in the history of computing, with global spending widely estimated around 300 billion dollars, nearly half of it in the United States.
That effort was institutional and methodical, led from the top. In the United States, President Clinton’s administration created the President’s Council on Year 2000 Conversion under John Koskinen to coordinate agencies and industry; Britain ran a parallel “Action 2000” program, and similar drives ran worldwide. But the technical campaign was shadowed by a popular dread that ran well beyond the evidence. Books and broadcasts forecast the collapse of civilization; some Christian figures, among them Jerry Falwell, framed Y2K in prophetic terms and urged the faithful to stock up on food and guns. A measurable share of the public withdrew cash, bought generators, and braced for the end.
The morning after broke the prophecy of collapse. The rollover produced only minor problems — radiation monitors faltering briefly at a Japanese plant, slot machines failing in Delaware, credit-card terminals rejecting year-2000 expiry dates, clocks displaying “19100,” and a handful of administrative errors, including incorrect medical screening results sent to a group of pregnant women in England. None approached catastrophe. The lasting debate is whether the calm proved the remediation worked or proved the danger had been exaggerated all along — a question made sharper by the observation that some countries which spent little fared no worse.