In 2005 Wikipedia's first sentence called it “calendar used to date events in predominately muslim countries”. Today it says “lunar calendar consisting of 12 lunar months in a year of 354 or 355 days”.
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The opening as it read in 2005
Islamic calendar or Muslim calendar (also called 'Hijri calendar') is the calendar used to date events in predominately Muslim countries, and used by Muslims everywhere to determine the proper day on which to celebrate Muslim holy days.1It is a purely lunar calendar having 12 lunar months in a year of about 354 days. Because this lunar year is about 11 days shorter than the solar year, Muslim holy days, although celebrated on fixed dates in their own calendar, usually occur 11 days earlier each successive solar year, such as a year of the Gregorian calendar . Islamic years are also called Hijra years because the first year was the year during which the Hijra occurred— Muhammad 's emigration from Mecca to Medina .2Thus each numbered year is designated either H or AH, the latter being the initials of the Latin anno Hegirae (in the year of the Hijra).3
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The opening as it stood in 2010 2 passages from the previous snapshot no longer appear
The Islamic calendar or Muslim calendar or Hijri calendar ( ; at-taqwīm al-hijrī ; Persian : تقویم هجری قمری taqwīm-e hejri-ye qamari ; ; Islami taqwīm ) is a lunar calendar consisting of 12 lunar months in a year of 354 or 355 days.It is used to date events in many Muslim countries (concurrently with the Gregorian calendar ), and used by Muslims everywhere to determine the proper day on which to celebrate Islamic holy days and festivals.The first year was the year during which the emigration of the Islamic prophet Muhammad from Mecca to Medina , known as the Hijra , occurred.Each numbered year is designated either H for Hijra or AH for the Latin anno Hegirae (in the year of the Hijra).A limited number of years before Hijra (BH) are used to date events related to Islam, such as the birth of Muhammad in 53 BH.The current Islamic year is 1431 AH, from approximately 18 December 2009 (evening) to 6 December 2010 (evening).Being a purely lunar calendar, it is not synchronized with the seasons .With an annual drift of 11 or 12 days, the seasonal relation is repeated approximately each 33 Islamic years.Bosworth , E. van Donzel and W.P.Encyclopaedia of Islam Online .
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The opening as it stood in 2015 5 passages from the previous snapshot no longer appear
It is used to date events in many Muslim countries (concurrently with the Gregorian calendar ), and used by Muslims everywhere to determine the proper days on which to observe the annual fasting , to attend Hajj , and to celebrate other Islamic holidays and festivals.The first year was the Islamic year beginning in AD 622 during which the emigration of Muhammad from Mecca to Medina , known as the Hijra , occurred.Each numbered year is designated either "H" for Hijra or "AH" for the Latin anno Hegirae ("in the year of the Hijra "); hence, Muslims typically call their calendar the Hijri calendar.The current Islamic year is 1436 AH.In the Gregorian calendar, 1436 AH runs from approximately 24 October 2014 (evening) to 13 October 2015 (evening). at-taqwīm al-hijrī taqvim-e hejri-ye qamari Islami taqwīm' Hijra Calendar Watt, W. Bosworth , E. van Donzel and W.P. Encyclopaedia of Islam Online .
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The opening as it stood in 2020 5 passages from the previous snapshot no longer appear
It is used to determine the proper days of Islamic holidays and rituals, such as the annual period of fasting and the proper time for the Hajj .The civil calendar of almost all countries where the religion is predominantly Muslim is the Gregorian calendar , with Syriac month-names used in the Levant and Mesopotamia ( Iraq , Syria , Jordan , Lebanon and Palestine ).Notable exceptions to this rule are Iran and Afghanistan, which use the Solar Hijri calendar .Rents, wages and similar regular commitments are generally paid by the civil calendar.The Islamic calendar employs the Hijri era whose epoch was established as the Islamic New Year of 622 AD / CE .During that year, Muhammad and his followers migrated from Mecca to Medina and established the first Muslim community ( ummah ), an event commemorated as the Hijra .In the West, dates in this era are usually denoted AH ( , "in the year of the Hijra") in parallel with the Christian (AD), Common (CE) and Jewish eras (AM).In Muslim countries, it is also sometimes denoted as H from its Arabic form ( سَنَة هِجْرِيَّة , abbreviated ھ ).In English, years prior to the Hijra are reckoned as BH ("Before the Hijra").The current Islamic year is 1441 AH.In the Gregorian calendar, 1441 AH runs from approximately 31 August 2019 to 20 August 2020. Encyclopaedia of Islam Online . Islamic Finder, Hijra calendar There are <ref group=lower-alpha> tags or templates on this page, but the references will not show without a template or template (see the help page ).
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The opening as it stood on October 6, 2023 4 passages from the previous snapshot no longer appear
Lunar calendar used by Muslims to determine religious observances This article is about the Hijri calendar based on lunar observation.Islamic calendar stamp issued at King Khalid International Airport on 10 Rajab 1428 AH (24 July 2007 CE) The Hijri calendar ( ), also known in English as the Muslim calendar and Islamic calendar , is a lunar calendar consisting of 12 lunar months in a year of 354 or 355 days.It is used to determine the proper days of Islamic holidays and rituals, such as the annual fasting and the annual season for the great pilgrimage .In almost all countries where the predominant religion is Islam, the civil calendar is the Gregorian calendar , with Syriac month-names used in the Levant and Mesopotamia ( Iraq , Syria , Jordan , Lebanon and Palestine ) but the religious calendar is the Hijri one.This calendar enumerates the Hijri era , whose epoch was established as the Islamic New Year in 622 CE . During that year, Muhammad and his followers migrated from Mecca to Medina and established the first Muslim community ( ummah ), an event commemorated as the Hijrah . In the West, dates in this era are usually denoted AH ( , "in the year of the Hijrah"). In Muslim countries, it is also sometimes denoted as H from its Arabic form ( سَنَة هِجْرِيَّة , abbreviated ھ ). In English, years prior to the Hijra are denoted as BH ("Before the Hijra").In the Gregorian calendar reckoning, 1445 AH runs from 19 July 2023 to approximately 7 July 2024. Encyclopaedia of Islam Online . There are <ref group=lower-alpha> tags or templates on this page, but the references will not show without a template or template (see the help page ).
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The opening as it stood in 2025 1 passage from the previous snapshot no longer appear
Lunar calendar used by most Muslims This article is about the Hijri calendar based on lunar observation.[ refresh ] Islamic calendar stamp issued at King Khalid International Airport on 10 Rajab 1428 AH (24 July 2007 CE) The Hijri calendar ( Arabic : ٱلتَّقْوِيم ٱلْهِجْرِيّ , romanized : al-taqwīm al-hijrī ), also known in English as the Islamic calendar , is a lunar calendar consisting of 12 lunar months in a year of 354 or 355 days. It is used to determine the proper days of Islamic holidays and rituals, such as the annual fasting and the annual season for the great pilgrimage . In almost all countries where the predominant religion is Islam, the civil calendar is the Gregorian calendar , with Syriac month-names used in the Levant and Mesopotamia ( Iraq , Syria , Jordan , Lebanon and Palestine ), but the religious calendar is the Hijri one. This calendar enumerates the Hijri era , whose epoch was established as the Islamic New Year in 622 CE . During that year, Muhammad and his followers migrated from Mecca to Medina and established the first Muslim community ( ummah ), an event commemorated as the Hijrah . In the West, dates in this era are usually denoted AH ( Latin : Anno Hegirae , lit. ' In the year of the Hijrah ' ). In Muslim countries, it is also sometimes denoted as H from its Arabic form ( سَنَة هِجْرِيَّة , abbreviated ھ ). In English, years prior to the Hijra are denoted as BH ("Before the Hijra"). In the Gregorian calendar reckoning, 1447 AH runs from 26 June 2025 to approximately 15 June 2026. Encyclopaedia of Islam Online . There are <ref group=lower-alpha> tags or templates on this page, but the references will not show without a template or template (see the help page ).
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Today
In 2005 Wikipedia's first sentence called it “calendar used to date events in predominately muslim countries”. Today it says “lunar calendar consisting of 12 lunar months in a year of 354 or 355 days”. Read the current article and compare.
2005
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2015
2020
Oct '23
2025
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What Wikipedia says this is
Every article opens by defining its subject. This one was redefined since 2005, and today's defining sentence is their current revision.
Then
calendar used to date events in predominately muslim countries
Now
lunar calendar consisting of 12 lunar months in a year of 354 or 355 days
Struck red text is no longer in the article; dotted amber text was rewritten. Every revision id links to Wikipedia's copy; the text shown is our own saved copy. Data: /data. Wikipedia text is CC BY-SA; quoted for the record; not affiliated with Wikipedia.