June 21

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June 21 is the 172nd day of the year(173rd in leap years) in the Gregorian calendar.There are 193 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

This day usually marks the summer solstice in the Northern Hemisphere and the winter solstice in the Southern Hemisphere, which is the day of the year with the most hours of daylight in the Northern Hemisphere and the fewest hours of daylight in the Southern Hemisphere.

Summer solstice astronomical phenomenon

The summer solstice, also known as midsummer, occurs when one of the Earth's poles has its maximum tilt toward the Sun. It happens twice yearly, once in each hemisphere. For that hemisphere, the summer solstice is when the Sun reaches its highest position in the sky and is the day with the longest period of daylight. At the pole, there is continuous daylight around the summer solstice. On the summer solstice, Earth's maximum axial tilt toward the Sun is 23.44°. Likewise, the Sun's declination from the celestial equator is 23.44°.

Northern Hemisphere half of Earth that is north of the equator

The Northern Hemisphere is the half of Earth that is north of the Equator. For other planets in the Solar System, north is defined as being in the same celestial hemisphere relative to the invariable plane of the solar system as Earth's North Pole.

Winter solstice astronomical phenomenon marking the day with the shortest period of daylight and the longest night of the year

The winter solstice, also known as midwinter, occurs when one of the Earth's poles has its maximum tilt away from the Sun. It happens twice yearly, once in each hemisphere. For that hemisphere, the winter solstice is the day with the shortest period of daylight and longest night of the year, when the Sun is at its lowest daily maximum elevation in the sky. At the pole, there is continuous darkness or twilight around the winter solstice. Its opposite is the summer solstice.

Events

533 Year

Year 533 (DXXXIII) was a common year starting on Saturday of the Julian calendar. At the time, it was known as the Year of the Consulship of Iustinianus without colleague. The denomination 533 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.

Vandalic War conflict

The Vandalic or Vandal War was a conflict fought in North Africa between the forces of the Eastern Roman or Byzantine Empire and the Vandalic Kingdom of Carthage, in 533–534. It was the first of Justinian I's wars of reconquest of the lost Western Roman Empire.

Year 1307 (MCCCVII) was a common year starting on Sunday of the Julian calendar.

Births

598 Year

Year 598 (DXCVIII) was a common year starting on Wednesday of the Julian calendar. The denomination 598 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.

Pope Martin I pope

Pope Martin I reigned from 21 July 649 to his death in 655. He succeeded Pope Theodore I on 5 July 649. He was the only pope during the Eastern Roman domination of the papacy whose election was not approved by an iussio from Constantinople. Martin I was exiled by Emperor Constans II and died at Cherson. He is considered a saint and martyr by the Catholic Church and the Eastern Orthodox Church.

906 Year

Year 906 (CMVI) was a common year starting on Wednesday of the Julian calendar.

1736 Year

1736 (MDCCXXXVI) was a leap year starting on Sunday of the Gregorian calendar and a leap year starting on Thursday of the Julian calendar, the 1736th year of the Common Era (CE) and Anno Domini (AD) designations, the 736th year of the 2nd millennium, the 36th year of the 18th century, and the 7th year of the 1730s decade. As of the start of 1736, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.

Enoch Poor American general

Enoch Poor was a brigadier general in the Continental Army in the American Revolutionary War. He was a ship builder and merchant from Exeter, New Hampshire.

1741 Year

1741 (MDCCXLI) was a common year starting on Sunday of the Gregorian calendar and a common year starting on Thursday of the Julian calendar, the 1741st year of the Common Era (CE) and Anno Domini (AD) designations, the 741st year of the 2nd millennium, the 41st year of the 18th century, and the 2nd year of the 1740s decade. As of the start of 1741, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.


Deaths

532 Year

Year 532 (DXXXII) was a leap year starting on Thursday of the Julian calendar. At the time, it was known as the Second year after the Consulship of Lampadius and Probus. The denomination 532 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 Jiemin of Northern Wei ( 魏節閔帝), also known as Emperor Qianfei (前廢帝), at times referred to by pre-ascension title Prince of Guangling (廣陵王), personal name Yuan Gong (元恭), courtesy name Xiuye (脩業), was an emperor of Northern Wei. He became emperor after the clan members of the paramount general Erzhu Rong, after Erzhu Rong was killed by Emperor Xiaozhuang, overthrew Emperor Xiaozhuang. Emperor Jiemin tried to revive the Northern Wei state, but with his power curbed by the Erzhus, was not able to accomplish much. After the general Gao Huan defeated the Erzhus in 532, Emperor Jiemin was imprisoned by Gao and subsequently poisoned to death by Emperor Xiaowu, whom Gao made emperor.

Northern Wei former country (386–535)

The Northern Wei or the Northern Wei Empire, also known as the Tuoba Wei (拓跋魏), Later Wei (後魏), or Yuan Wei (元魏), was a dynasty founded by the Tuoba clan of the Xianbei, which ruled northern China from 386 to 534 CE, during the period of the Southern and Northern Dynasties. Described as "part of an era of political turbulence and intense social and cultural change", the Northern Wei Dynasty is particularly noted for unifying northern China in 439: this was also a period of introduced foreign ideas, such as Buddhism, which became firmly established.

Holidays and observances

Related Research Articles

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May 14 is the 134th day of the year in the Gregorian calendar. There are 231 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 5 is the 309th day of the year in the Gregorian calendar. There are 56 days remaining until the end of the year.

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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.

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

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References

  1. "HAPPY BIRTHDAY TO IAN MCEWAN" . Retrieved 28 September 2018.
  2. "Birthdays: June 21". The Houston Chronicle . June 20, 2018. Retrieved November 2, 2018.
  3. "F. Moubandje". Soccerway. Retrieved 1 June 2017.