September 15

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September 15 is the 258th day of the year(259th in leap years) in the Gregorian calendar.There are 107 days remaining until the end of the year.

A leap year is a calendar year containing one additional day added to keep the calendar year synchronized with the astronomical or seasonal year. Because seasons and astronomical events do not repeat in a whole number of days, calendars that have the same number of days in each year drift over time with respect to the event that the year is supposed to track. By inserting an additional day or month into the year, the drift can be corrected. A year that is not a leap year is called a common year.

The Gregorian calendar is the most widely used civil calendar in the world. It is named after Pope Gregory XIII, who introduced it in October 1582. The calendar spaces leap years to make the average year 365.2425 days long, approximating the 365.2422-day tropical year that is determined by the Earth's revolution around the Sun. The rule for leap years is:

Every year that is exactly divisible by four is a leap year, except for years that are exactly divisible by 100, but these centurial years are leap years if they are exactly divisible by 400. For example, the years 1700, 1800, and 1900 are not leap years, but the year 2000 is.

Contents

Events

668 Year

Year 668 (DCLXVIII) was a leap year starting on Saturday of the Julian calendar. The denomination 668 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Byzantine Empire Roman Empire during Late Antiquity and the Middle Ages

The Byzantine Empire, also referred to as the Eastern Roman Empire and Byzantium, was the continuation of the Roman Empire in its eastern provinces during Late Antiquity and the Middle Ages, when its capital city was Constantinople. It survived the fragmentation and fall of the Western Roman Empire in the 5th century AD and continued to exist for an additional thousand years until it fell to the Ottoman Turks in 1453. During most of its existence, the empire was the most powerful economic, cultural, and military force in Europe. Both the terms "Byzantine Empire" and "Eastern Roman Empire" are historiographical exonyms; its citizens continued to refer to their empire simply as the Roman Empire, or Romania (Ῥωμανία), and to themselves as "Romans".

Constans II Byzantine Emperor

Constans II, also called Constantine the Bearded, was emperor of the Byzantine Empire from 641 to 668. He was the last emperor to serve as consul, in 642. Constans is a nickname given to the Emperor, who had been baptized Herakleios and reigned officially as Constantine. The nickname established itself in Byzantine texts and has become standard in modern historiography.

Births

601 Year

Year 601 (DCI) was a common year starting on Sunday of the Julian calendar. The denomination 601 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Ali Cousin and son-in-law of Muhammad, first of the Shia Imams, and fourth Sunni Caliph

Ali was the cousin and son-in-law of Muhammad, the last prophet of Islam. He ruled as the fourth caliph from 656 to 661, but is regarded as the rightful immediate successor to Muhammad as an Imam by Shia Muslims.

Year 767 (DCCLXVII) was a common year starting on Thursday of the Julian calendar. The denomination 767 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Deaths

921 Year

Year 921 (CMXXI) was a common year starting on Monday of the Julian calendar.

Ludmila of Bohemia Czech princess

Saint Ludmila is a Czech saint and martyr venerated by the Orthodox and the Roman Catholics. She was born in Mělník as the daughter of the Sorbian prince Slavibor. Saint Ludmila was the grandmother of Saint Wenceslaus, who is widely referred to as Good King Wenceslaus.

Year 1140 (MCXL) was a leap year starting on Monday of the Julian calendar.

Holidays and observances

Battle of Britain Day

Battle of Britain Day is the name given to the day of the large-scale aerial battle that took place on 15 September 1940, during the Battle of Britain.

Calendar of saints Christian liturgical calendar celebrating saints

The calendar of saints is a traditional Christian method of organizing a liturgical year by associating each day with one or more saints and referring to the day as the feast day or feast of said saint. The word "feast" in this context does not mean "a large meal, typically a celebratory one", but instead "an annual religious celebration, a day dedicated to a particular saint".

Abibo Joseph is the name of a saint from Alaverdi. He is mentioned in Bessarion's The Saints of Georgia. His feast day is celebrated on September 15.

Related Research Articles

December 24 is the 358th day of the year in the Gregorian calendar. There are seven days remaining until the end of the year.

July 27 is the 208th day of the year in the Gregorian calendar. There are 157 days remaining until the end of the year.

July 15 is the 196th day of the year in the Gregorian calendar. There are 169 days remaining until the end of the year.

January 12 is the 12th day of the year in the Gregorian calendar. There are 353 days remaining until the end of the year.

November 22 is the 326th day of the year in the Gregorian calendar. There are 39 days remaining until the end of the year.

November 8 is the 312th day of the year in the Gregorian calendar. There are 53 days remaining until the end of the year.

October 24 is the 297th day of the year in the Gregorian calendar. There are 68 days remaining until the end of the year.

October 10 is the 283rd day of the year in the Gregorian calendar. There are 82 days remaining until the end of the year.

October 5 is the 278th day of the year in the Gregorian calendar. There are 87 days remaining until the end of the year.

October 8 is the 281st day of the year in the Gregorian calendar. There are 84 days remaining until the end of the year.

October 18 is the 291st day of the year in the Gregorian calendar. There are 74 days remaining until the end of the year.

October 15 is the 288th day of the year in the Gregorian calendar. There are 77 days remaining until the end of the year.

October 16 is the 289th day of the year in the Gregorian calendar. There are 76 days remaining until the end of the year.

September 22 is the 265th day of the year in the Gregorian calendar. There are 100 days remaining until the end of the year. It is frequently the day of the autumnal equinox in the Northern Hemisphere and the day of the vernal equinox in the Southern Hemisphere.

September 14 is the 257th day of the year in the Gregorian calendar. There are 108 days remaining until the end of the year.

September 5 is the 248th day of the year in the Gregorian calendar. There are 117 days remaining until the end of the year.

September 17 is the 260th day of the year in the Gregorian calendar. There are 105 days remaining until the end of the year.

September 12 is the 255th day of the year in the Gregorian calendar. There are 110 days remaining until the end of the year.

September 25 is the 268th day of the year in the Gregorian calendar. There are 97 days remaining until the end of the year.

April 4 is the 94th day of the year in the Gregorian calendar. There are 271 days remaining until the end of the year.

References

  1. "Diversity - UMUC". www.umuc.edu.