In the West, we tend to think that there is only one calendar, but there are dozens of them around the world. And what is more, there were probably hundreds of them before. All defunct now either because ours is more precise or because theirs did not fit in with our commercial way of life.
But that does not mean to say that people do not still use those old-fashioned, redundant calendars. Oh, no! Governments have given up their old, traditional national calendars, but in general, country folk still refer to them, even if they can no longer obtain a printed version. I cannot go into all the calendars here, but I will mention five or six of them.
Lunar Calendar – There is some indication that early man used marks on bone to record or indicate the passage of time 25,000 years ago, almost certainly calibrated by the Moon’s phases. A calendar can be created based on the lunar cycles; it creates a year of twelve months (the word ‘month’ is from the word ‘moon’), but only 354 days, which is, eleven short of the time it takes the Earth to revolve around the Sun. The Chinese still use a variety of the lunar calendar but they resolve this issue by inserting extra moths every now and then to bring ‘time’ back into alignment with the Sun.
Solar Calendar – The ancient Egyptians were the first people to employ a Solar Calendar, although it could justifiably be called a cosmological calendar. The new year began for them when Sirius, the Dog Star, the brightest star in the night sky, rose in the same place as the Sun. This usually coincided with the flooding of the Nile. This calendar was of 365 days; twelve months of thirty days and five festive days. Therefore, it was only one quarter of a day off the true year. However, this meant that gradually, the new year did not concur with the flood. Scientists have worked out that this calendar was adopted in either 4241 BC or 2773 BC.
Julian Calendar – In 46 BC , Julius Caesar realised that a number of provinces of the empire were using different calendars, so he instructed the dating system to be unified. Sosigenes came up with a calendar of 365 days with an extra day every four years. Therefore, in 46 BC, the longest year on record, Caesar added days to the year to bring it back into alignment with the seasons. 46 BC was 445 days long! The immensity of the Roman Empire ensured that this calendar was the defacto calendar of the Western world.
Julian Day Count – In 1582, Pope Gregory XIII instituted a new calendar, but the year after that Joseph Justus Scaliger developed a system of counting days, not years. It starts with 1 on January 1st 4713 BC. On this date the Julian and the lunar calendars and the Roman tax dating system all coincided; something that will next happen in 3267. January 1st 2001 was Julian day 2,451,913
Gregorian Calendar – from at least 730 AD, it was spotted that the year from vernal equinox to vernal equinox was short of the 365.25 days in a year. This had the consequence that the date of Easter was moving back. So he dropped 10 days from 1582 by jumping from October 4th to October 15th and proclaiming that century years would only be leap years if they were divisible by 400. Consequently, 1900 was not a leap year, but 2000 was. This is the calendar we still use today.
Owen Jones, the writer of this piece, writes on many topics, but is currently involved with researching Franklin planner pages. If you have an interest in calendars, organizers or promotional calendars, please go over to our website now at Promotional Desk Calendars
The Ancient Chinese Lunar Calendar
Prior to their adoption of the Western solar calendar scheme, the Chinese almost wholly followed their own lunar calendar for determining the times of planting and harvesting and festival holidays. Although people in China today use the Western calendar for almost all business, governmental and practical matters of daily life, the old method still serves as the basis for working out numerous seasonal holidays. This coexistence of two calendar systems has long been acknowledged by the people of China.
However, this does not only happen in China, it also happens in most other Eastern countries, like Thailand, and most Arabic countries.
A lunar month is determined by measuring the period of time needed for the moon to complete its full cycle of 29 and a half days, a standard that makes the lunar year a whole eleven days shorter than its solar counterpart. This difference is made up every 19 years by the addition of seven lunar months.
The 12 lunar months are further divided into 24 solar divisions characterized by the four seasons and times of heat and cold, all of which bear a close relationship to the annual cycle of agricultural work.
The Chinese calendar – very much like the Hebrew calendar- is a mixture of the solar and lunar calendars in that it attempts to have its years coincide with the tropical year and its months agree with the synodic months. It is not surprising that a few similarities exist between the Chinese and the Hebrew calendar.
For example, an average year has 12 months, a leap year has 13 months. An ordinary year has 353, 354, or 355 days, a leap year has 383, 384, or 385 days. When determining what a Chinese year will be like, one must make a number of astronomical calculations.
First of all, you have to work out the dates for the new moons. In these instances, a new Moon is the completely black Moon (that is to say, when the Moon is in conjunction with the Sun), not the first visible crescent, as is used by the Islamic and Hebrew calendars. The date of a new moon is then the first day of a new month.
The reason why the majority of countries which had their own calendars had to dump them in favour of the Western, Julian calendar that we use today, is business. First the British and then the Americans ran international business and they used the Gregorian calendar. Anyone who sought to work with them had to follow suit. This is why national policy often differs from local custom in Third World countries.
The government desires to deal on the International markets, but the ordinary family in the country can not. So, the government took up the Gregorian calendar but the people only pay lip service to it. I live in Thailand and people here do not even use the 24 hour day divided into two halves. Their day has four sections of six hours each and the first part starts at 6AM, not midnight. Therefore, they have four 4 o’clocks a day, for instance but no 7 o’clocks. They are also 543 years ahead of us, although this is more common, for instance in Muslim countries.
Owen Jones, the writer of this piece, writes on many subjects, but is currently involved with researching Franklin planner pages. If you have an interest in calendars, organizers or promotional calendars, please go over to our website now at Promotional Desk Calendars