Encyclopedia - Gregorian Calendar: Encyclopedia Ii - Gregorian Calendar - Proleptic Gregorian Calendar
The Gregorian calendar can, for certain purposes, be extended backwards to dates preceding its official introduction, producing the prole...   » Read the article

Encyclopedia - Gregorian Calendar: Encyclopedia Ii - Gregorian Calendar - Calendar Seasonal Error
This image shows the difference between the Gregorian calendar and the seasons. The Y axis is "days error" and the X axis is Gregorian c...   » Read the article

Encyclopedia - Gregorian Calendar: Encyclopedia Ii - Gregorian Calendar - Accuracy
The Gregorian calendar improves the approximation made by the Julian calendar by skipping 3 Julian leap days in every 400 years, giving a...   » Read the article

Encyclopedia - August 11: Encyclopedia - August 11
August 11 is the 223rd day of the year (224th in leap years) in the Gregorian Calendar. There are 142 days remaining. August 11 - Events...   » Read the article

Encyclopedia - 0s: Encyclopedia - 0s
Centuries: 1st century BC - 1st century - 2nd century Decades: 40s BC 30s BC 20s BC 10s BC 0s BC - 0s - 10s 20s 30s 40s 50s Years: 1 2 3 ...   » Read the article

Encyclopedia - Emperor Wuzong Of Tang China: Encyclopedia - Emperor Wuzong Of Tang China
They are not in the proleptic Gregorian calendar. ——— Image courtesy of chinapage.com Emperor Tang Wuzong (武宗 814-846), born Li...   » Read the article

Encyclopedia - 0s Bc: Encyclopedia - 0s Bc
Centuries: 2nd century BC - 1st century BC - 1st century Decades: 50s BC 40s BC 30s BC 20s BC 10s BC - 0s BC - 0s 10s 20s 30s 40s Years: ...   » Read the article

Encyclopedia - Gregorian Calendar: Encyclopedia - Gregorian Calendar
The Gregorian calendar is the calendar that is used nearly everywhere in the world. A modification of the Julian calendar, it was first p...   » Read the article

Encyclopedia - August 12: Encyclopedia - August 12
August 12 is the 224th day of the year (225th in leap years) in the Gregorian Calendar. There are 141 days remaining. It is the peak of t...   » Read the article

Encyclopedia - Gregorian Calendar: Encyclopedia Ii - Gregorian Calendar - History
Gregorian calendar - Invention. The motivation of the Catholic Church in adjusting the calendar was to have Easter celebrated at the ti...   » Read the article

Encyclopedia - Gregorian Calendar: Encyclopedia Ii - Gregorian Calendar - Days Of The Week
January 1 of any year whose number is a multiple of 400 is a Saturday. From this you can work out the day of the week of any date. See al...   » Read the article

Encyclopedia - Gregorian Calendar: Encyclopedia Ii - Gregorian Calendar - Confusion With British Vs. American Usage
Dates of events in Britain prior to 1752 are usually now shown in their original Old Style form, whereas dates of events in (then British...   » Read the article

Encyclopedia - Gregorian Calendar: Encyclopedia Ii - Gregorian Calendar - Numerical Facts
When leap years and common years are taken into account, there are a total of 14 possible Gregorian calendars. When different dates of Ea...   » Read the article

Encyclopedia - Gregorian Calendar: Encyclopedia Ii - Gregorian Calendar - Months Of The Year
The Gregorian calendar's year is divided into 12 months: English speakers sometimes remember the number of days in each month by the use ...   » Read the article

Encyclopedia - Gregorian Calendar: Encyclopedia Ii - Gregorian Calendar - Number Of Leap Years Starting On A Given Day Of The Week
Because there are 97 leap years in every 400 in the Gregorian Calendar, there should, in each "cycle", be either 13 or 14 leap years star...   » Read the article

Encyclopedia - Iso 8601: Encyclopedia Ii - Iso 8601 - Dates
The standard uses the Gregorian calendar, already the de facto standard of international trade. The standard acknowledges that other cale...   » Read the article

Encyclopedia - Julian Calendar: Encyclopedia Ii - Julian Calendar - From Roman To Julian
The ordinary year in the previous Roman calendar consisted of 12 months, for a total of 355 days. In addition, an intercalary month, the ...   » Read the article

Encyclopedia - Julian Calendar: Encyclopedia Ii - Julian Calendar - Leap Years Error
Despite the new calendar being much simpler than the Roman calendar, the pontifices apparently misunderstood the algorithm. They added a ...   » Read the article

Encyclopedia - Hindu Calendar: Encyclopedia Ii - Hindu Calendar - Year Numbering
The epoch (starting point or first day of the first year) of the current era of Hindu calendar (both solar and lunisolar) is BCE 3102 Jan...   » Read the article

Encyclopedia - Julian Calendar: Encyclopedia Ii - Julian Calendar - Naming Of The Months
Immediately after the Julian reform, the twelve months of the Roman calendar were named Ianuarius, Februarius, Martius, Aprilis, Maius, I...   » Read the article

Encyclopedia - Julian Calendar: Encyclopedia Ii - Julian Calendar - Lengths Of The Months
According to the 13th century scholar Sacrobosco, the original scheme for the months in the Julian Calendar was very regular, alternately...   » Read the article

Encyclopedia - Julian Calendar: Encyclopedia Ii - Julian Calendar - Year Numbering
The dominant method that the Romans used to identify a year for dating purposes was to name it after the two consuls who took office in i...   » Read the article

Encyclopedia - Julian Calendar: Encyclopedia Ii - Julian Calendar - From Julian To Gregorian
The Julian calendar was in general use in Europe from the times of the Roman Empire until 1582, when Pope Gregory XIII promulgated the Gr...   » Read the article

Encyclopedia - Hebrew Calendar: Encyclopedia Ii - Hebrew Calendar - Modern Calendar
Hebrew calendar - Epoch. The epoch of the modern Hebrew calendar is 1 Tishri AM 1 (AM = anno mundi = in the year of the world), which i...   » Read the article

Encyclopedia - Hindu Calendar: Encyclopedia - Hindu Calendar
The Hindu calendar is of two types: the solar calendar or the saura māna the lunisolar calendar or the chāndra māna Both are describ...   » Read the article

Encyclopedia - Common Era: Encyclopedia - Common Era
The Common Era (CE), also known as the Christian Era and sometimes the Current Era, is the period of measured time beginning with the yea...   » Read the article

Encyclopedia - Century: Encyclopedia - Century
A century (From the Latin cent, one hundred) is one hundred one hundred consecutive years. In all dating systems, centuries are essentia...   » Read the article

Encyclopedia - Maya Calendar: Encyclopedia - Maya Calendar
The Maya calendar is actually a system of distinct calendars and almanacs used by the Maya civilization of pre-Columbian Mesoamerica. The...   » Read the article

Encyclopedia - Year Zero: Encyclopedia - Year Zero
A Year zero does not exist in the Christian Era and thus also does not exist in our current calculation of times. The Roman numeral syst...   » Read the article

Encyclopedia - Year Zero: Encyclopedia Ii - Year Zero - Historians
Bede was the first historian to use a BC year and hence the first to adopt the convention of no year 0 between BC and AD, in his Historia...   » Read the article

Encyclopedia - Common Era: Encyclopedia Ii - Common Era - Support
Supporters of common era notation promote it as a religiously neutral notation suited for cross-cultural use. Arguments given for standar...   » Read the article

Encyclopedia - Kublai Khan: Encyclopedia Ii - Kublai Khan - Empire
The empire was separated into four khanates, each ruled by a separate khan and overseen by the Great Khan. The Kipchak Khanate (also call...   » Read the article

Encyclopedia - Julian Day: Encyclopedia Ii - Julian Day - History
The Julian day number is based on the Julian Period proposed by Joseph Scaliger in 1583, at the time of the Gregorian calendar reform, bu...   » Read the article

Encyclopedia - Emperor Xuanzong Of Tang China: Encyclopedia Ii - Emperor Xuanzong Of Tang China - Later Years
As Xuanzong turned his attention to pleasure-seeking with Yang and her family, he paid less and less attention to the running of his empi...   » Read the article

Encyclopedia - Emperor Taizong Of Tang China: Encyclopedia Ii - Emperor Taizong Of Tang China - The Palace Coup At The Xuanwu Gate
The original crown prince was Taizong's elder brother Li Jiancheng (李建成) although their father had promised the throne to Taizong m...   » Read the article

Encyclopedia - Emperor Xuanzong Of Tang: Encyclopedia Ii - Emperor Xuanzong Of Tang - Later Years
As Xuanzong turned his attention to pleasure-seeking with Yang and her family, he paid less and less attention to the running of his empi...   » Read the article

Encyclopedia - Emperor Taizong Of Tang: Encyclopedia Ii - Emperor Taizong Of Tang - The Palace Coup At The Xuanwu Gate
The original crown prince was Taizong's elder brother Li Jiancheng (李建成) although their father had promised the throne to Taizong m...   » Read the article

Encyclopedia - Kublai Khan: Encyclopedia Ii - Kublai Khan - Empire
The empire was separated into four khanates, each ruled by a separate khan and overseen by the Great Khan. The Kipchak Khanate (also call...   » Read the article

Encyclopedia - Hindu Calendar: Encyclopedia Ii - Hindu Calendar - Day
The Hindu calendrical day starts with local sunrise. It is allotted five "properties", called anga-s. They are: the tithi active at sunr...   » Read the article

Encyclopedia - Maya Calendar: Encyclopedia Ii - Maya Calendar - Long Count
Since Calendar Round dates can only distinguish within 18980 days, equivalent to around 52 solar years, the cycle repeats roughly once ea...   » Read the article

Encyclopedia - Common Era: Encyclopedia Ii - Common Era - Usage
Jewish and Christian scholars have developed the BCE/CE terms for the benefit of cross-cultural dialogue.[1]. Some Islamic scholars and o...   » Read the article

Encyclopedia - Iso 8601: Encyclopedia Ii - Iso 8601 - Time Interval
Time intervals specify an amount of time. They may be specified in four ways: Start and end, such as 2002-03-01T13:00:00Z/2003-05-11T15:...   » Read the article

Encyclopedia - Julian Day: Encyclopedia Ii - Julian Day - Calculation
The Julian day number can be calculated using the following formulas: All divisions (except for JD) are integer divisions, meaning the re...   » Read the article

Encyclopedia - Year Zero: Encyclopedia Ii - Year Zero - Other Year Zero Traditions
Year zero - South Asian moon calendars. All eras used with Hindu and Buddhist calendars, such as the Saka era or the Kali Yuga, begin w...   » Read the article

Encyclopedia - Julian Day: Encyclopedia Ii - Julian Day - Julian Date
The Julian Date (JD) is the Julian day number plus the decimal fraction of the day that has elapsed since noon. Historical Julian Dates w...   » Read the article

Encyclopedia - Emperor Taizong Of Tang: Encyclopedia Ii - Emperor Taizong Of Tang - Literature
He was the subject of a 64-chapter (in eight volumes) The Novel of the Prince of Qin of the Great Tang (大唐秦王詞話 Datang Qin Wan...   » Read the article

Encyclopedia - Emperor Taizong Of Tang: Encyclopedia Ii - Emperor Taizong Of Tang - Family
He had: Wende-shunsheng Empress (文德順聖皇后), Zhangsun-shi (長孫氏) Xian Consort (賢妃), Xu Hui (徐惠) Consort Yang I (�...   » Read the article

Encyclopedia - Year Zero: Encyclopedia Ii - Year Zero - Media
In the movie Back to the Future Dr. Emmett Brown, the inventor of a time machine, enters the input date of the "birth of Christ" on a key...   » Read the article

Encyclopedia - Emperor Taizong Of Tang: Encyclopedia Ii - Emperor Taizong Of Tang - Early Achievements
Taizong was born in Lunghsi (in present-day Kansu. Taizong was known as a Hojen (胡人).) as the second son of Li Yuan, and was of one-q...   » Read the article

Encyclopedia - Year Zero: Encyclopedia Ii - Year Zero - Third Millennium
Historians note that the 3rd millennium began on 1 January 2001 because they regard the Christian Era as beginning with year 1, whereas m...   » Read the article

Encyclopedia - Year Zero: Encyclopedia Ii - Year Zero - Astronomers
Astronomers include a year 0 immediately before year 1. The first use of an astronomical year 0 is traditionally attributed to Jacques Ca...   » Read the article

Encyclopedia - Hindu Calendar: Encyclopedia Ii - Hindu Calendar - Eras
Hindu mythology speaks of four eras or ages, of which we are currently in the last. The four are: Krita Yuga or Satya Yuga Tretā Yuga D...   » Read the article

Encyclopedia - Maya Calendar: Encyclopedia Ii - Maya Calendar - Venus Cycle
Another important calendar for the Maya was the Venus cycle. The Maya were excellent astronomers, and could calculate the Venus cycle ext...   » Read the article

Encyclopedia - Hindu Calendar: Encyclopedia Ii - Hindu Calendar - Month And Year Of The Solar Calendar
Now that the days are defined, we shall speak of how the solar calendar reckons its months and year. As has been previously noted, the su...   » Read the article

Encyclopedia - Hindu Calendar: Encyclopedia Ii - Hindu Calendar - Months Of The Lunisolar Calendar
When a new moon occurs before sunrise on a day, that day is said to be the first day of the lunar month. So it is evident that the end of...   » Read the article

Encyclopedia - Hindu Calendar: Encyclopedia Ii - Hindu Calendar - Another Kind Of Lunisolar Calendar
There is another kind of lunisolar calendar which differs from the former in the way the months are named. This section describes the dif...   » Read the article

Encyclopedia - Maya Calendar: Encyclopedia Ii - Maya Calendar - Calendar Round
Neither the Tzolkin nor the Haab system numbered the years. The combination of a Tzolkin date and a Haab date was enough to identify a da...   » Read the article

Encyclopedia - Maya Calendar: Encyclopedia Ii - Maya Calendar - Haab
The Haab was the Maya solar calendar made up of eighteen months of twenty days each and a five day month at the end of the year known as ...   » Read the article

Encyclopedia - Maya Calendar: Encyclopedia Ii - Maya Calendar - General Overview
The most important of these calendars is one with a period of 260 days. This 260-day calendar was prevalent across all Mesoamerican socie...   » Read the article

Encyclopedia - Maya Calendar: Encyclopedia Ii - Maya Calendar - Maya Concepts Of Time
With the development of the place-notational Long Count calendar (believed to have been inherited from other Mesoamerican cultures), the ...   » Read the article

Encyclopedia - Maya Calendar: Encyclopedia Ii - Maya Calendar - Tzolk'in
Mayanists have bestowed the name tzolkin (or tzolk'in, in the revised orthography which is now preferred) on the Maya version of the Meso...   » Read the article

Encyclopedia - Hindu Calendar: Encyclopedia Ii - Hindu Calendar - Correspondence Of The Lunisolar Calendar To The Solar Calendar
A lunisolar calendar is always a calendar based on the moon's celestial motion, which in a way keeps itself close to a solar calendar bas...   » Read the article

Encyclopedia - Hindu Calendar: Encyclopedia Ii - Hindu Calendar - History
The Hindu Calendar descends from the Vedic times. There are many references to calendrics in the Vedas. The Vedānga (adjunct to Veda) ca...   » Read the article

Encyclopedia - Emperor Taizong Of Tang China: Encyclopedia Ii - Emperor Taizong Of Tang China - Literature
He was the subject of a 64-chapter (in eight volumes) The Novel of the Prince of Qin of the Great Tang (大唐秦王詞話 Datang Qin Wan...   » Read the article

Encyclopedia - Iso 8601: Encyclopedia Ii - Iso 8601 - General Principles
Dates and times are self-contained, and do not rely on any external context for their values. They are entirely numerical in representati...   » Read the article

Encyclopedia - Iso 8601: Encyclopedia Ii - Iso 8601 - Times
ISO 8601 uses the 24-hour clock system that is used by much of the world. The basic format is hhmmss and the extended format is hh:mm:ss....   » Read the article

Encyclopedia - Iso 8601: Encyclopedia Ii - Iso 8601 - Combined Representations
Combining date and time representations is quite simple. It is in the format of <date>T<time>. The <date> and <time&...   » Read the article

Encyclopedia - Emperor Taizong Of Tang China: Encyclopedia Ii - Emperor Taizong Of Tang China - Family
He had: Wende-shunsheng Empress (文德順聖皇后), Zhangsun-shi (長孫氏) Xian Consort (賢妃), Xu Hui (徐惠) Consort Yang I (�...   » Read the article

Encyclopedia - Emperor Taizong Of Tang China: Encyclopedia Ii - Emperor Taizong Of Tang China - Early Achievements
Taizong was born in Lunghsi (in present-day Kansu. Taizong was known as a Hojen (胡人).) as the second son of Li Yuan, and was of one-q...   » Read the article

Encyclopedia - Common Era: Encyclopedia Ii - Common Era - Chronology And Notation
The calendar practice prompting the coining of the term common era is the system of numbering years from the birth of Jesus of Nazareth. ...   » Read the article

Encyclopedia - Common Era: Encyclopedia Ii - Common Era - Origins
According to Peter Daniels (a Cornell University and University of Chicago trained linguist): CE and BCE came into use in the last few de...   » Read the article

Encyclopedia - Common Era: Encyclopedia Ii - Common Era - Opposition
Changing dates expressed in BC terminology to BCE has given rise to some opposition. Arguments against the common era designation include...   » Read the article

Encyclopedia - Iso 8601: Encyclopedia Ii - Iso 8601 - Duration
Durations are represented by the format PnYnMnDTnHnMnS (nM may be replaced with nW to use the week format.) In this representation replac...   » Read the article