Among the ancients, time was measured by the length of the day and by seasons. Calendars were initially created to help people keep trace of the seasons for the purpose of planting and harvesting.1 In those times, seasons had a far greater impact on people’s lives and everything they did than they do today.
Wise men in great civilisations, such as Egypt and Babylon, studied the heavens to improve their measurement of time so they could more accurately predict the seasons and their annual rotations. As civilisations developed, calendars became useful for other matters as well, such as marking religious holidays, taxation and census dates, government works programmes and the accurate recording of history, etc.
However, it was not possible to produce a simple annual calendar that was absolutely accurate, simply because an accurate solar year is anything but simple. A full solar year is precisely 365.2425 days long, but how do you incorporate 1.2425 days in a simple annual calendar?
There have been several attempts in the distant past, by a number of nations, to produce a workable calendar that was consistently accurate. The calendar that we have now traces its origin back, before Christ, to the time of Julius Caesar.
The Julian Calendar
Because of problems with the old Roman Lunar Calendar, Sosigenes, a Greek astronomer who lived in Alexandria, was asked to create a better one. He produced a solar calendar of 365.25 days per year, which became known as the Julian Calendar, after Julius Caesar. Sosigenes was aware of the fact that his year was fractionally longer than the solar year, but knew that this wouldn’t become a problem for a long, long time. As anticipated, the Julian Calendar remained unchanged for 1,600 years, but the time came when another adjustment was necessary. The Julian Calendar lengthened each year incrementally, thus adding another day to the year every 134 years, so that by 1582 the calendar was out of kilter with the seasons by ten days.
The Gregorian Calendar
On the recommendation of the wisest men in the papal court, Pope Gregory XIII commissioned a correction.2 The revised Julian Calendar, now called the Gregorian Calendar, omitted ten days following October 4, 1582. What would have become Friday, October 5, became Friday, October 15. The order of the days of the week remained the same; the only thing that changed with this correction was the date.
In addition, instead of adding a day every four years, it was provided that February should have its twenty-ninth day only in those centesimal years exactly divisible by four hundred, and in all other years divisible by four. Although the Gregorian Calendar is still not one hundred percent accurate, it is as nearly correct as it could be for a thousand-year period.
What’s Wrong with the Gregorian Calendar?
In the 18th, 19th and 20th centuries there was agitation by calendar reformers for a further revision of the calendar because of the following problems with it:
1. It is not perpetual. Next year’s calendar will be different from this year’s and each year starts on a different day of the week. In fact, it will be four hundred years before the calendar will again be the same as our calendar this year.
2. It is difficult to determine the weekday of any given day of the month. For example, do you know on what day of the week your birthday will fall in 2012?
3. Months vary in length and are irregularly distributed throughout the year. This year February had twenty-eight days; March, thirty-one and April, thirty. To remember how long each month is we use the mnemonic, ‘Thirty days hath September, April, June and November,’ etc.
4. Months are irregular in that they sometimes have four Mondays, Tuesdays or Wednesdays, etc. and sometimes five.
5. The calendar is inconsistent, because one year a public holiday may fall in the middle of the working week, but the very next year it may fall at the end of the working week, or even in the weekend.
The Calendar Reform Movement
Endeavours to reform the Gregorian Calendar go back to 1745 when ‘Hirossa-ap-Iccum’ of Maryland published a thirteen month calendar, having exactly four weeks in each month. This calendar was popularised by the French philosopher, Auguste Comte (1798-1857) in one of his works.
In 1834 Abbé Marco Mastrofini, a mathematician and astronomer, proposed a year of 364 days, with the 365th annual day, and the 366th Leap Year day, as extra days outside the seven day week. In other words, the 365th and 366th days of the year, while being within the year, would not be counted as one of the seven days of the week, that is, neither of these days would be a Sunday, Monday, Tuesday, Wednesday, Thursday, Friday or Saturday; they would be ‘blanc’ days.
In 1859, an Englishman, Moses B. Cotsworth, a statistician, produced a Reform Calendar, consisting of thirteen months of twenty-eight days each (=364 days). He chose twenty-eight days as the length of the month because they constitute exactly four weeks. Every month and week would begin with Sunday, and end with Saturday. Regardless of the month, Sunday would always be on the 1st, 8th, 15th and 22nd, and Saturday would always be on the 7th, 14th, 21st and 28th. Wednesdays, similarly, would always fall on the 4th, 11th, 18th and 25th.
Cotsworth’s ‘Perpetual International Calendar’ would not only make every month the same, but every year the same. The problem, however, that all calendar reformers had to grapple with, was, what were they to do with the 365th day of the year, and Leap Year day when it occurred? Neither of these days could be incorporated within Cotsworth’s calendar without destroying its ‘clinical’ order. His solution was to exclude these days from his perpetual calendar by making them blank days, that is, days that had a date (29th) but which would exist outside of the seven day week.
In Cotsworth’s thirteen-month calendar the blank day would follow the last Saturday of a month, but would not be a Sunday. Instead, the day after the blank day would be Sunday. This meant that the following Friday would be the seventh day from the last Saturday. And in a Leap Year, the seventh day from the last Saturday would be a Thursday. You can well imagine the justifiable consternation among Jews and Sabbatarian Christians if such a proposal were adopted. Cotsworth, who migrated to the United States, received the first endorsement for his Reform Calendar from the Canadian Royal Society in 1909. He then promoted his calendar through the International Fixed Calendar League, after which he got strong financial and moral backing from George Eastman, the millionaire Kodak camera manufacturer.
Official Moves to Reform Calendar
In 1922 the International Astronomical Union voted that some revision of the Gregorian Calendar would be desirable. About that same time the International Chamber of Commerce voted that the League of Nations be requested to appoint a special committee to study the possibility of reforming the calendar.
The following year the League of Nations set up a committee to study the whole subject of calendar revision. This special committee on calendar reform invited Moses Cotsworth to come to Europe to give them the benefit of his technical knowledge. Three years later, in 1926, the committee reported back to the League of Nations. It stated that of the one hundred and eighty-five calendar proposals that had been submitted to it, three were worthy of consideration.
While we haven’t been able to discover what the three finalists were, two probables would have been the thirteen equal month blank day calendar and the twelve month equal quarters blank day calendar. The third possible choice may have been the leap-week calendar.
The League of Nations recommended that each nation be asked to appoint a national committee on calendar simplification, and that the citizens of each country be canvassed to ascertain how they would be affected by any change in the reckoning of time. Once this was done, an International Conference would be called, at which time the final form of new calendar for the whole world would be adopted. This International Conference ‘was held in Geneva, 12 October 1931, and lasted a week.’3
One hundred and eleven delegates from forty-two nations attended the October meeting. There was a strong desire to reform the calendar, but in the end, the Conference chose to take no action with reference to such a revision for three reasons:
(a) There was a lack of agreement among calendar revisionists as to which revised calendar would be best.
(b) There was great political unrest among the nations at the time, which would militate against a revised calendar being adopted worldwide.
(c) There was intense opposition from religious groups who foresaw the perpetual seven day week being trampled underfoot by calendar revisions that incorporated blank days.
Endnotes:
1. The Bible teaches that the lights in the sky (the sun and moon) were to ‘mark seasons and days and years’ (Gen. 1:14).
2. Most of the work on this revision had been done earlier by Luigi Giglio, a lecturer at the University of Perugia.
3. Lewis S. Palen, ‘The Clock of the Centuries’ Journal of Calendar Reform, (December 1955 – January 1956), p.227.