---
title: "The 1841 storm that delayed a train turns out to be a misprint"
description: "The Exeter express was real, but the date was wrong by seven years; one stray digit in Nature hid the fact for generations"
author: "Arthur Wren"
published: 2026-09-28T17:56:36Z
modified: 2026-09-29T02:21:31Z
url: https://rews.cc/a/the-1841-storm-that-delayed-a-train-turns-out-to-be-a-mispri-58efdc
language: en
tags: ["space-weather", "history", "magnetism", "aurora", "telegraph", "science"]
publisher: "Rews (https://rews.cc)"
---

# The 1841 storm that delayed a train turns out to be a misprint

*The Exeter express was real, but the date was wrong by seven years; one stray digit in Nature hid the fact for generations*

By Arthur Wren · September 28, 2026 · https://rews.cc/a/the-1841-storm-that-delayed-a-train-turns-out-to-be-a-mispri-58efdc

## In brief

- A long-quoted account blamed a geomagnetic storm for delaying the 10:05 pm Exeter train on 18 October 1841
- The source, a solar enthusiast named Holmes connected to Norman Lockyer, gave no verifiable citation for the date
- Greenwich magnetograms show no storm in England on 18 October 1841, and the railway was not yet open that year
- Strong storm activity, Chevallier’s sunspot observations and timetables all match 18 October 1848, pointing to a misprinted year
- The earliest confirmed case of space weather disrupting technology is now a March 1847 telegraph failure on the Midland Railway

For well over a century, a small and charming story has stood in the record: on 18 October 1841, a geomagnetic storm scrambled the instruments at Exeter, and the 10:05 pm train paid for it. It was, on its face, the earliest known case of the sun meddling with human machinery. A team led by James A. Wild has now taken the story apart, and their paper, published in the journal *Space Weather*, finds that the event happened — but not when everyone has said it happened. The year, it seems, was a typographical error, off by a single digit and seven full years.

The account traced back through *Nature* and through a man named Holmes, who appears to have been its source. That Holmes existed, and that he cared about the sun, is not in doubt. Wild and his co-authors found contemporary newspaper notices of Holmes lecturing in Scotland on the chemical effects of the solar spectrum, and he plainly knew of Norman Lockyer’s discovery of helium lines in solar spectra. An 1877 letter survives in which Holmes invites Lockyer to visit — evidence, the authors note, of some business relation between the two. The tale did not come from a fabulist. It came from a man who knew his subject and got his year wrong, or else had it gotten wrong for him at the printers.

The doubters’ case begins with a missing footnote. Of the 1841 report, Wild and colleagues write that no citation is given that would allow its truth to be checked. The colourful part of the story — that the railway operators “reported next morning that someone was playing tricks with the instruments” — smells, they suggest, of a contemporary newspaper write-up, but no such report, and no language anywhere like it, has ever been found.

## What the archives said instead

The paper trail, unlike the anecdote, can be laid on a table. The Greenwich magnetic observatory in London kept magnetograms as far back as 1840, including records of “extraordinary” magnetic readings during strong storms. Nothing unusual — no storm, no aurora — appears anywhere in England for 18 October 1841. And there is a more pedestrian objection: according to the [paper’s abstract](https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2026SW005239?af=R), the 1841 date does not square with the opening date of the railway itself. The train could not have been delayed that year, because it was not yet running.

Turn the dial seven years and the record lights up. Strong geomagnetic activity stands plainly in the archives around 18 October 1848, confirmed both in contemporary newspapers and in sunspot observations made by the British astronomer Temple Chevallier on 19 October 1848. And when the researchers consulted the railway timetables of the period, they found a 10:05 pm express departing Exeter listed between 11 March 1848 and 26 July 1849. Storm, train and hour all agree — for 1848, not 1841. The conclusion writes itself: the event was real, and the digit in the year was not.

One consequence follows for the history books. Striking out the 1841 tale removes what was cited as the first documented instance of space weather striking human technology. The title now passes to an incident of March 1847, when “spontaneous electrical currents” disrupted the telegraph lines of the Midland Railway while a “brilliant aurora” glowed over the British Isles — an event anchored, this time, in records that can be produced.

There is a lesson here that costs nothing and is rarely learned. A good story, once printed in a respectable place, acquires a kind of armour; it is quoted, and requoted, and after a hundred years the quotation itself becomes the evidence. What Wild and his colleagues did was not clever in any elaborate way. They looked up the weather, the sunspots and the bus timetable of the age, and the myth fell over. The Victorians kept better records than they kept secrets, and the records, when anyone bothers to open them, usually win.