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Leap Year Starting On Saturday
A leap year starting on Saturday is any year with 366 days (i.e. it includes 29 February) that begins on Saturday, 1 January, and ends on Sunday, 31 December. Its dominical letters hence are BA. The most recent year of such kind was 2000, and the next one will be 2028 in the Gregorian calendar or, likewise 2012 and 2040 in the obsolete Julian calendar. In the Gregorian calendar, years divisible by 400 are always leap years starting on Saturday. The most recent such occurrence was 2000 and the next one will be 2400, see below for more. Any leap year that starts on Saturday has only one Friday the 13th: the only one in this leap year occurs in October. Common years starting on Sunday share this characteristic, but also have another in January. From August of the common year preceding that year until October in this type of year is also the longest period (14 months) that occurs without a Friday the 13th. Common years starting on Tuesday share this characteristic, from July ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saturday
Saturday is the day of the week between Friday and Sunday. No later than the 2nd century, the Romans named Saturday ("Saturn's Day") for the god Saturn. His planet, Saturn, controlled the first hour of that day, according to Vettius Valens. The day's name was introduced into West Germanic languages and is recorded in the Low German languages such as Middle Low German , ''saterdach'', Middle Dutch (Modern Dutch ), and Old English , ''Sæterndæġ'' or . Origins Between the 1st and 3rd centuries AD, the Roman Empire gradually replaced the eight-day Roman nundinal cycle with the seven-day week. The astrological order of the days was explained by Vettius Valens and Dio Cassius (and Chaucer gave the same explanation in his ''Treatise on the Astrolabe''). According to these authors, it was a principle of astrology that the heavenly bodies presided, in succession, over the hours of the day. The association of the weekdays with the respective deities is thus indirect, the day ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Year Starting On Friday
A common year starting on Friday is any non-leap year (i.e. a year with 365 days) that begins on Friday, 1 January, and ends on Friday, 31 December. Its dominical letter hence is C. The most recent year of such kind was 2021, and the next one will be 2027 in the Gregorian calendar, or, likewise, 2022 and 2033 in the obsolete Julian calendar; see below for more. This common year is one of the three possible common years in which a century year can end on, and occurs in century years that yield a remainder of 100 when divided by 400. The most recent such year was 1700, and the next one will be 2100. Any common year that starts on Friday has only one Friday the 13th: the only one in this common year occurs in August. Leap years starting on Thursday share this characteristic, but also have another one in February. From July of the year that precedes this type of year until September in this type of year is the longest period (14 months) that occurs without a Friday the 13th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1628
Events January–March * January 19 – (26 Jumada al-Awwal 1037 Islamic calendar, A.H.) The reign of Shahryar Mirza, Salef-ud-din Muhammad Shahryar as the Mughal Emperor, Shahryar Mirza, comes to an end a little more than two months after the November 7 death of his father, Jahangir, as Sharyar's older brother, Shihab defeats him in battle. Prince Shihab-ud-Din Muhammad Khurram takes the name Shah Jahan and sentences Shahryar and other members of the court to death. * January 23 – After being incarcerated and blinded on orders of his brother, former Mughal Emperor Shahryar Mirza is put to death, along with his nephews, co-ruler Dawar Bakhsh, and Princes Garshasp, Tahmuras and Hoshang. * February 3 – In what is now the South American nation of Chile, the indigenous Mapuche lay siege to the Spanish colonial settlement of Fort Nativity (Fuerte de Nacimiento), Nacimiento. The Spanish captain and a force of 40 men are able to hold out until reinforceme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
17th Century
The 17th century lasted from January 1, 1601 (represented by the Roman numerals MDCI), to December 31, 1700 (MDCC). It falls into the early modern period of Europe and in that continent (whose impact on the world was increasing) was characterized by the Baroque cultural movement, the latter part of the Spanish Golden Age, the Dutch Golden Age, the French ''Grand Siècle'' dominated by Louis XIV, the Scientific Revolution, the world's first public company and megacorporation known as the Dutch East India Company, and according to some historians, the General Crisis. From the mid-17th century, European politics were increasingly dominated by the Kingdom of France of Louis XIV, where royal power was solidified domestically in the civil war of the Fronde. The semi-feudal territorial French nobility was weakened and subjugated to the power of an absolute monarchy through the reinvention of the Palace of Versailles from a hunting lodge to a gilded prison, in which a greatly expanded ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1600
In the Gregorian calendar, it was the first century leap year and the last until the year 2000. Events January–March * January 1 – Scotland adopts January 1 as New Year's Day instead of March 25. * January 20 – Hugh O'Neill, Earl of Tyrone, renews the Nine Years' War (Ireland) against England with an invasion of Munster. * January 24 – Sebald de Weert makes the first recorded sighting of the Falkland Islands. * February 17 – On his way to be burned at the stake for heresy in Rome, Giordano Bruno has his tongue "imprisoned" after he refuses to stop talking. * February 19 – The Huaynaputina volcano in Peru erupts, in what is still the worst recorded volcanic eruption. * March 20 – Linköping Bloodbath: Five Swedish nobles are publicly executed by decapitation and Polish–Swedish King Sigismund III Vasa is ''de facto'' deposed as ruler of Sweden. April–June * April 19 – The first Dutch ship ever to arrive in Japan, the ''Liefde'' ("Love"), anchors in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
16th Century
The 16th century began with the Julian calendar, Julian year 1501 (represented by the Roman numerals MDI) and ended with either the Julian or the Gregorian calendar, Gregorian year 1600 (MDC), depending on the reckoning used (the Gregorian calendar introduced a lapse of 10 days in October 1582). The Renaissance in Italy and Europe saw the emergence of important artists, authors and scientists, and led to the foundation of important subjects which include accounting and political science. Copernicus proposed the Copernican heliocentrism, heliocentric universe, which was met with strong resistance, and Tycho Brahe refuted the theory of celestial spheres through observational measurement of the SN 1572, 1572 appearance of a Milky Way supernova. These events directly challenged the long-held notion of an immutable universe supported by Ptolemy and Aristotle, and led to major revolutions in astronomy and science. Galileo Galilei became a champion of the new sciences, invented the first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leap Year Starting On Thursday
A leap year starting on Thursday is any year with 366 days (i.e. it includes 29 February) that begins on Thursday 1 January, and ends on Friday 31 December. Its dominical letters hence are DC. The most recent year of such kind was 2004, and the next one will be 2032 in the Gregorian calendar or, likewise, 2016 and 2044 in the obsolete Julian calendar. This is the only leap year with three occurrences of Tuesday the 13th: those three in this leap year occur three months (13 weeks) apart: in January, April, and July. Common years starting on Monday share this characteristic, in the months of February, March, and November. Any leap year that starts on Thursday has two Friday the 13ths: those two in this leap year occur in February and August. This is also the only year in which February has five Sundays, as the leap day adds that extra Sunday. This year has three months (February, May and August) which begin on a weekend-day. Calendars Applicable years Gregor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leap Year Starting On Monday
A leap year starting on Monday is any year with 366 days (i.e. it includes February 29, 29 February) that begins on Monday, 1 January, and ends on Leap year starting on Tuesday, Tuesday, 31 December. Its dominical letters hence are GF. The most recent year of such kind was 2024, and the next one will be 2052 in the Gregorian calendar or, likewise, 2008 and 2036 in the obsolete Julian calendar. Any leap year that starts on Monday has two Friday the 13ths: those two in this leap year September 13, occur in September and December 13, December. Common year starting on Tuesday, Common years starting on Tuesday share this characteristic. This year has three months (June, September and December) which begin on a weekend-day. Calendars Applicable years Gregorian Calendar Leap years that begin on Monday, along with those Leap year starting on Saturday, starting on Saturday and Leap year starting on Thursday, Thursday, occur least frequently: 13 out of 97 (≈ 13.4%) total leap y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO Week Date
The ISO week date system is effectively a leap week calendar system that is part of the ISO 8601 date and time standard issued by the International Organization for Standardization (ISO) since 1988 (last revised in 2019) and, before that, it was defined in ISO (R) 2015 since 1971. It is used (mainly) in government and business for fiscal years, as well as in timekeeping. This was previously known as "Industrial date coding". The system specifies a ''week year'' atop the Gregorian calendar by defining a notation for ordinal weeks of the year. The Gregorian leap cycle, which has 97 leap days spread across 400 years, contains a whole number of weeks (). In every cycle there are 71 years with an additional 53rd week (corresponding to the Gregorian years that contain 53 Thursdays). An average year is exactly 52.1775 weeks long; months ( year) average at exactly 4.348125 weeks/month. An ISO week-numbering year (also called ''ISO year'' informally) has 52 or 53 full weeks. That is 3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO 8601
ISO 8601 is an international standard covering the worldwide exchange and communication of date and time-related data. It is maintained by the International Organization for Standardization (ISO) and was first published in 1988, with updates in 1991, 2000, 2004, and 2019, and an amendment in 2022. The standard provides a well-defined, unambiguous method of representing calendar dates and times in worldwide communications, especially to avoid misinterpreting numeric dates and times when such data is transferred between countries with different conventions for writing numeric dates and times. ISO 8601 applies to these representations and formats: ''dates'', in the Gregorian calendar (including the proleptic Gregorian calendar); ''times'', based on the 24-hour timekeeping system, with optional UTC offset; '' time intervals''; and combinations thereof.ISO 8601:2004 section 1 Scope The standard does not assign specific meaning to any element of the dates/times represented: t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leap Year
A leap year (also known as an intercalary year or bissextile year) is a calendar year that contains an additional day (or, in the case of a lunisolar calendar, a month) compared to a common year. The 366th day (or 13th month) is added to keep the calendar year synchronised with the astronomical year or seasonal year. Since astronomical events and seasons do not repeat in a Natural number, whole number of days, calendars having a constant number of days each year will unavoidably drift over time with respect to the event that the year is supposed to track, such as seasons. By inserting ("Intercalation (timekeeping), intercalating") an additional day—a leap day—or month—a leap month—into some years, the drift between a civilization's dating system and the physical properties of the Solar System can be corrected. An astronomical year lasts slightly less than 365 days. The historic Julian calendar has three common years of 365 days followed by a leap year of 366&nb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
September
September is the ninth month of the year in the Julian and Gregorian calendars. Its length is 30 days. September in the Northern Hemisphere and March in the Southern Hemisphere are seasonally equivalent. In the Northern hemisphere, the beginning of the meteorological autumn is on 1 September. In the Southern hemisphere, the beginning of the meteorological spring is on 1 September. September marks the beginning of the ecclesiastical year in the Eastern Orthodox Church. It is the start of the academic year in many countries of the northern hemisphere, in which children go back to school after the summer break, sometimes on the first day of the month. Some Libras and Virgos are born in September, with Virgos being born on September 1st through September 22nd and Libras September 23rd through September 30. September (from Latin ''septem'', "seven") was originally the seventh month in the oldest known Roman calendar, the calendar of Romulus , with March being ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
