The Off-Key Bard
History

This Day in History — Britain Skips 11 Days to Fix Its Calendar

On this day in 1752

On September 2, 1752, Britain went to sleep under the Julian calendar and woke on September 14 — eleven days erased, and George Washington's birthday permanently moved.

The Off-Key Bard checks the calendar before bed. It says September 2. Tomorrow, somehow, it will be September 14…

"Imagine going to sleep tonight and waking up eleven dates later. No time machine. No unusually long nap. Just Parliament deciding that the calendar needed fixing."

On this day in 1752, Great Britain and its American colonies observed September 2 under the Julian calendar for the last time. When citizens woke the following morning, it was not September 3 but September 14, 1752. Eleven dates had been erased overnight — not lost, precisely, but skipped. The days of September 3 through September 13, 1752 do not exist in British or American history.

The cause was one of the longest-running administrative embarrassments in the history of Western civilization.

The Problem With Julius Caesar's Calendar

In 46 BC, Julius Caesar commissioned a reformed calendar that calculated the solar year at 365.25 days. This was an improvement on what came before, but it was wrong by approximately 11 minutes per year. Eleven minutes sounds trivial. Over 1,800 years, it accumulated into an 11-day misalignment between the calendar and the actual solar year. By the 16th century, the spring equinox was falling on March 11 instead of March 21 — a problem that directly affected the calculation of Easter, since Easter's date is tied to the spring equinox.

In 1582, Pope Gregory XIII issued a papal bull correcting the error. The Gregorian calendar dropped ten days immediately — October 4 was followed by October 15 in Catholic countries — and introduced a refined leap year rule to prevent the drift from recurring. Catholic Europe adopted it almost immediately.

Protestant Britain refused. A Catholic pope fiddling with Caesar's calendar was, to Protestant sensibilities, a suspicious act — smacking, as JSTOR Daily put it, "of a Popish trick." Britain held out for 170 years while dates on opposite sides of the English Channel diverged by an ever-growing margin. By 1700 a further day's drift had accumulated, requiring a correction of eleven days rather than ten by the time Britain finally acted.

Scotland, notably, had already moved the start of its new year to January 1 in 1600, though it stayed with Julian dating until 1752. England, Wales, and Ireland continued to mark the new year on March 25 — Lady Day, the Feast of the Annunciation — creating a situation where an Englishman in Edinburgh and a Scotsman in London would sometimes disagree not just about the day but about the year.

The Calendar (New Style) Act 1750

The reform was championed in Parliament by Philip Stanhope, 4th Earl of Chesterfield, who personally guided the Calendar Act through the House of Lords in 1750. The act took effect in two stages:

January 1, 1752: The legal new year shifted from March 25 to January 1, bringing England into alignment with Scotland and most of Europe. This was the quieter of the two changes.

September 2–14, 1752: The eleven-day correction. The Calendar Act declared that Wednesday, September 2 would be followed directly by Thursday, September 14.

The reform was announced in almanacs and newspapers across the colonies. Benjamin Franklin explained it in Poor Richard's Almanack. The South Carolina Gazette announced it in its January 1, 1752 issue. Connecticut published the change in its 1752 almanac with the unusual calendar that year printed with September jumping from the 2nd to the 14th.

"Give Us Our Eleven Days"

The popular story holds that there were riots — angry mobs demanding their lost eleven days, chanting the slogan. Hogarth painted the scene in his famous "Humours of an Election" series. The riots are probably mythological. Historians examining the actual contemporary record have found no reliable accounts of riots over the calendar change specifically, though the Hogarth painting and the slogan have proven too good a story to let go.

What was real was resentment, particularly around wages and rents. If a laborer was paid quarterly, did losing eleven days mean losing eleven days of pay? If a lease ran from March 25, did the tenant owe a full quarter's rent on a shorter quarter? Parliament addressed the wage question directly in the Calendar Act, specifying that annual contracts and quarterly payments would continue to fall on the same dates in the Gregorian calendar — meaning workers were protected from losing pay.

The Tax Year That Never Changed Back

The Treasury faced a different problem. The old British tax year ran from Lady Day — March 25 — to the following March 24. When the calendar jumped eleven days in September 1752, the Treasury moved the start of the tax year from March 25 to April 5 (eleven days later in the new calendar) to ensure taxpayers still paid a full 365 days of tax. Then, in 1800, when the Gregorian calendar omitted a leap day that the Julian calendar would have observed, the Treasury moved it one more day forward — to April 6.

The UK tax year still begins on April 6. It has run from that date for over two centuries, and the reason is directly traceable to Britain's 170-year delay in adopting the Gregorian calendar.

George Washington's Two Birthdays

The calendar change created a genealogical puzzle that persists today. Dates recorded before 1752 in Britain and the colonies carry an ambiguity: were they Old Style Julian dates or New Style Gregorian? The practice of "double dating" — writing dates between January 1 and March 24 as "1750/51" to indicate both Julian and Gregorian equivalents — became common in formal records.

George Washington was born on February 11, 1731 under the Old Style Julian calendar. After the 1752 reform, two corrections applied: the eleven-day shift moved his birthday to February 22, and the change of new year from March 25 to January 1 moved his birth year from 1731 to 1732. His Old Style birthday was February 11, 1731. His New Style birthday — the one celebrated today — is February 22, 1732.

Washington himself celebrated February 22 from 1752 onward. Eleven days, 170 years of Protestant stubbornness, and one of America's most famous birthdays all trace back to the same papal decree a Pope issued in 1582 to fix the date of Easter.

"September second closed the night,
Then fourteen greeted morning's light.
No days were stolen, none went astray—
We changed the numbers, not the day."

History reminds us: calendars feel like immutable natural laws, but they are purely human inventions — tools we periodically recalibrate whenever the sky and the seasons refuse to conform to our paperwork. The eleven days that vanished in September 1752 were never lost. They were simply the distance between where we told ourselves we were and where we actually stood.

Sources

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