April 21

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April 21 is the 111th day of the year(112th in leap years) in the Gregorian calendar.There are 254 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 calendar used in most of 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

Romulus one of the twin brothers of Romes foundation myth

Romulus was the legendary founder and first king of Rome. Various traditions attribute the establishment of many of Rome's oldest legal, political, religious, and social institutions to Romulus and his contemporaries. Although many of these traditions incorporate elements of folklore, and it is not clear to what extent a historical figure underlies the mythical Romulus, the events and institutions ascribed to him were central to the myths surrounding Rome's origins and cultural traditions.

Ancient Rome History of Rome from the 8th-century BC to the 5th-century

In historiography, ancient Rome is Roman civilization from the founding of the Italian city of Rome in the 8th century BC to the collapse of the Western Roman Empire in the 5th century AD, encompassing the Roman Kingdom, Roman Republic and Roman Empire until the fall of the western empire. The civilization began as an Italic settlement in the Italian Peninsula, conventionally founded in 753 BC, that grew into the city of Rome and which subsequently gave its name to the empire over which it ruled and to the widespread civilisation the empire developed. The Roman Empire expanded to become one of the largest empires in the ancient world, though still ruled from the city, with an estimated 50 to 90 million inhabitants and covering 5.0 million square kilometres at its height in AD 117.

Births

Year 1132 (MCXXXII) was a leap year starting on Friday of the Julian calendar.

Sancho VI of Navarre King of Navarre

Sancho Garcés VI, called the Wise was King of Navarre from 1150 until his death in 1194. He was the first monarch to officially drop the title of King of Pamplona in favour of King of Navarre, thus changing the designation of his kingdom. Sancho Garcés was responsible for bringing his kingdom into the political orbit of Europe. He was the eldest son of García Ramírez, the Restorer and Margaret of L'Aigle.

Year 1488 (MCDLXXXVIII) was a leap year starting on Tuesday of the Julian calendar.

Deaths

234 Year

Year 234 (CCXXXIV) was a common year starting on Wednesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Pupienus and Sulla. The denomination 234 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.

Emperor Xian of Han last emperor of the Han Dynasty

Emperor Xian of Han, personal name Liu Xie, courtesy name Bohe, was the 14th and last emperor of the Eastern Han dynasty in China. He reigned from 28 September 189 until 11 December 220.

586 Year

Year 586 (DLXXXVI) was a common year starting on Tuesday of the Julian calendar. The denomination 586 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.

Holidays and observances

Saint Abdecalas was a Persian priest of advanced age who, together with another priest, Saint Ananias, and about a hundred other Christians, was killed under the Persian ruler Shapur II on Good Friday, 345. One of these others was also named Abdecalas.

Anastasius Sinaita Byzantine theologian

Anastasius Sinaïta, also called Anastasios of Sinai, was a seventh-century Greek ecclesiastical writer, priest, monk, and abbot of Saint Catherine's Monastery at Mount Sinai.

Anselm of Canterbury 11th and 12th-century Archbishop of Canterbury, theologian, and saint

Anselm of Canterbury, also called Anselm of Aosta after his birthplace and Anselm of Bec after his monastery, was an Italian Benedictine monk, abbot, philosopher and theologian of the Catholic Church, who held the office of archbishop of Canterbury from 1093 to 1109. After his death, he was canonized as a saint; his feast day is 21 April.

Related Research Articles

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References

  1. "WITTLEBURY, John (1333-1400), of Whissendine, Rutland and Milton and Marholm, Northants". History of Parliament Online. Retrieved 16 April 2013.