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{{short description|Fourth month in the Julian and Gregorian calendars}}
{{short description|Fourth month in the Julian and Gregorian calendars}}
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{{about|the month}}
{{about|the month}}
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{{Calendar}}


'''April''' is the fourth month of the year in the [[Gregorian calendar|Gregorian]] and [[Julian calendar]]s. Its length is 30 days.
'''April''' is the fourth month of the year in the [[Gregorian calendar|Gregorian]] and [[Julian calendar]]s. Its length is 30 days.
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== History ==
== History ==
[[File:Breviarium Grimani - April.jpg|thumb|April, Brevarium Grimani, fol. 5v (Flemish)]]
[[File:Breviarium Grimani - April.jpg|thumb|April, Brevarium Grimani, fol. 5v (Flemish)]]
[[File:04 April - Percent of global area at temperature records - Global warming - NOAA.svg |thumb |In recent decades, the number of warm temperature records in April has outpaced cold temperature records over a growing portion of Earth's surface.<ref>{{cite web |title=Mean Monthly Temperature Records Across the Globe |url=https://www.ncei.noaa.gov/access/monitoring/monthly-report/global/202501/supplemental/page-3 |publisher=National Centers for Environmental Information (NCEI) of the National Oceanic and Atmospheric Administration (NOAA) }} Link is an example for one month; for other months, change the "202501" in the preceding URL to '''yyyymm''', where '''yyyy''' is the four-digit year and '''mm''' is the two-digit month (01=January through 12=December)</ref>]]
[[File:1850- 04 April each year - Global average temperature changes.svg |thumb |Chart shows changes in global average temperature annually in April of each year<ref>.●{{nbsp}}Source for 1850- raw data: {{cite web |title=Global Land and Ocean Temperature Anomalies |url=https://www.ncei.noaa.gov/data/noaa-global-surface-temperature/v6.1/access/timeseries/aravg.mon.land_ocean.90S.90N.v6.1.0.202602.asc |publisher=National Centers for Environmental Information (NCEI) of the National Oceanic and Atmospheric Administration (NOAA) |archive-url=https://web.archive.org/web/20260326165000/https://www.ncei.noaa.gov/data/noaa-global-surface-temperature/v6.1/access/timeseries/aravg.mon.land_ocean.90S.90N.v6.1.0.202602.asc |archive-date=26 March 2026 |url-status=live}}
<br>●{{nbsp}}Updated data is accessible through [https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/global/time-series/globe/land_ocean/tavg/1/0/1850-2026 Climate at a Glance Global Time Series / Globe / Global Time Series]. ''Choose parameters:'' Surface: Land and Ocean / Parameter: Average Temperature Anomaly / Time Scale: 1-Month / Month: All Months / Start Year: 1850 / End Year: 20__.
<br>●{{nbsp}}Technical note: data in chart is adjusted to reference period of 1850-1900 (representing pre-industrial era)</ref>]]


The Romans gave this month the [[Latin]] name ''[[Aprilis]]''<ref name=Chambers>"April" in ''[[Chambers's Encyclopædia]]''. London: [[George Newnes Ltd|George Newnes]], 1961, Vol.&nbsp;1, p.&nbsp;497.</ref> but the derivation of this name is uncertain. The traditional etymology is from the verb ''aperire'', "to open", in allusion to its being the season when trees and flowers begin to "open", which is supported by comparison with the modern Greek use of [[wikt:άνοιξη#Greek|άνοιξη]] (''ánixi'') (opening) for spring. Since some of the Roman months were named in honor of divinities, and as April was sacred to the goddess [[Venus (mythology)|Venus]], her [[Veneralia]] being held on the first day, it has been suggested that Aprilis was originally her month '''Aphrilis''', from her equivalent Greek goddess name [[Aphrodite]] (''Aphros''), or the [[Etruscan language|Etruscan]] name ''[[Aphrodite|Apru]]''. [[Jacob Grimm]] suggests the name of a hypothetical god or hero, ''Aper'' or ''Aprus''.<ref>Jacob Grimm ''Geschichte der deutschen Sprache''. Cap. "Monate"</ref>
The Romans gave this month the [[Latin]] name {{lang|la|[[Aprilis]]}}<ref name=Chambers>"April" in ''[[Chambers's Encyclopædia]]''. London: [[George Newnes Ltd|George Newnes]], 1961, Vol.&nbsp;1, p.&nbsp;497.</ref> but the derivation of this name is uncertain. The traditional etymology is from the verb {{wikt-lang|la|aperire}}, {{gloss|to open}}, in allusion to its being the season when trees and flowers begin to "open", which is supported by comparison with the modern Greek use of {{wikt-lang|el|άνοιξη}} ({{translit|el|ánixi}}, {{gloss|opening}}) for spring. Since some of the Roman months were named in honor of divinities, and as April was sacred to the goddess [[Venus (mythology)|Venus]], her [[Veneralia]] being held on the first day, it has been suggested that Aprilis was originally her month '''Aphrilis''', from her equivalent Greek goddess name [[Aphrodite]] (''Aphros''), or the [[Etruscan language|Etruscan]] name ''[[Aphrodite|Apru]]''. [[Jacob Grimm]] suggests the name of a hypothetical god or hero, ''Aper'' or ''Aprus''.<ref>Jacob Grimm ''Geschichte der deutschen Sprache''. Cap. "Monate"</ref>


April was the second month of the earliest [[Roman calendar]],<ref name="Chisholm1911"/> before ''[[Ianuarius]]'' and ''[[Februarius]]'' were added by King [[Numa Pompilius]] about 700&nbsp;BC. It became the fourth month of the calendar year (the year when twelve months are displayed in order) during the time of the [[decemvirs]] about 450&nbsp;BC, when it was 29&nbsp;days long. The 30th day was added back during the reform of the calendar undertaken by [[Julius Caesar]] in the mid-40s&nbsp;BC, which produced the Julian calendar.
April was the second month of the earliest [[Roman calendar]],<ref name="Chisholm1911"/> before ''[[Ianuarius]]'' and ''[[Februarius]]'' were added by King [[Numa Pompilius]] about 700&nbsp;BC. It became the fourth month of the calendar year (the year when twelve months are displayed in order) during the time of the [[decemvirs]] about 450&nbsp;BC, when it was 29&nbsp;days long. The 30th day was added back during the reform of the calendar undertaken by [[Julius Caesar]] in the mid-40s&nbsp;BC, which produced the Julian calendar.


The [[Anglo-Saxons]] called April ''ēastre-monaþ''. The [[Venerable Bede]] says in ''[[The Reckoning of Time]]'' that this month ''ēastre'' is the root of the word [[Easter]]. He further states that the month was named after a goddess ''[[Eostre]]'' whose feast was in that month. It is also attested by [[Einhard]] in his work ''[[Vita Karoli Magni]]''.
The [[Anglo-Saxons]] called April {{lang|ang|ēastre-monaþ}}. The [[Venerable Bede]] says in ''[[The Reckoning of Time]]'' that this month {{wikt-lang|ang|ēastre}} is the root of the word [[Easter]]. He further states that the month was named after a goddess ''[[Eostre]]'' whose feast was in that month. It is also attested by [[Einhard]] in his work ''[[Vita Karoli Magni]]''.


[[St George]]'s day is the twenty-third of the month; and [[St Mark]]'s Eve, with its superstition that the ghosts of those who are doomed to die within the year will be seen to pass into the church, falls on the twenty-fourth.<ref name="Chisholm1911">{{EB1911|inline=1|wstitle=April|volume=2|page=230}}</ref>
[[St George]]'s day is the twenty-third of the month; and [[St Mark]]'s Eve, with its superstition that the ghosts of those who are doomed to die within the year will be seen to pass into the church, falls on the twenty-fourth.<ref name="Chisholm1911">{{EB1911|inline=1|wstitle=April|volume=2|page=230}}</ref>
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The [[Lyrids]] [[meteor shower]] appears on April 16 – April 26 each year, with the peak generally occurring on April 22. The [[Eta Aquariids]] meteor shower also appears in April. It is visible from April 21 to May 20 each year, with peak activity on or around May 6. The [[Pi Puppids]] appear on April 23, but only in years around the parent comet's [[perihelion]] date. The [[Virginids]] also shower at various dates in April.
The [[Lyrids]] [[meteor shower]] appears on April 16 – April 26 each year, with the peak generally occurring on April 22. The [[Eta Aquariids]] meteor shower also appears in April. It is visible from April 21 to May 20 each year, with peak activity on or around May 6. The [[Pi Puppids]] appear on April 23, but only in years around the parent comet's [[perihelion]] date. The [[Virginids]] also shower at various dates in April.


The "Days of April" (''journées d'avril'') is a name assigned in French history to a [[July Monarchy#April 1834 insurrections|series of insurrections]] at Lyons, Paris and elsewhere, against the government of [[Louis-Philippe of France|Louis Philippe]] in 1834, which led to violent repressive measures, and to a famous trial known as the ''procès d'avril''.<ref name="Chisholm1911"/>
The "Days of April" ({{lang|fr|journées d'avril}}) is a name assigned in French history to a [[July Monarchy#April 1834 insurrections|series of insurrections]] at Lyons, Paris and elsewhere, against the government of [[Louis-Philippe of France|Louis Philippe]] in 1834, which led to violent repressive measures, and to a famous trial known as the {{lang|fr|procès d'avril}}.<ref name="Chisholm1911"/>


== Symbols ==
== Symbols ==
[[File:Diamond.jpg|alt=Faceted diamond|thumb|Faceted [[diamond]]]]April's [[birthstone]] is the [[diamond (gemstone)|diamond]]. The [[birth flower]] is the [[common daisy]] ''(Bellis perennis)'' or the [[sweet pea]].<ref>Kipfer, Barbara Ann (1997) ''The Order of Things''. New York: Random House</ref><ref>{{cite web|url=http://www.shgresources.com/gems/birthflowers/|archive-url=https://archive.today/20120911093344/http://www.shgresources.com/gems/birthflowers/|url-status=dead|archive-date=2012-09-11|title=U101 College Search}}</ref> The [[zodiac]] signs are [[Aries (astrology)|Aries]] (until April 19) and [[Taurus (astrology)|Taurus]] (April 20 onward).<ref>The Earth passed the junction of the signs at 14:45 UT/GMT on April 19, 2020, and will pass it again at 20:33 UT/GMT on April 19, 2021.</ref><ref name=astrology>{{cite web |title=Astrology Calendar |url=https://www.yourzodiacsign.com/calendar/ |website=yourzodiacsign |access-date=March 29, 2020 |archive-date=March 29, 2020 |archive-url=https://web.archive.org/web/20200329204306/https://www.yourzodiacsign.com/calendar/ |url-status=live }} Signs in UT/GMT for 1950–2030.</ref>
[[File:Diamond.jpg|alt=Faceted diamond|thumb|Faceted [[diamond]]]]April's [[birthstone]] is the [[diamond (gemstone)|diamond]]. The [[birth flower]] is the [[common daisy]] ''(Bellis perennis)'' or the [[sweet pea]].<ref>Kipfer, Barbara Ann (1997) ''The Order of Things''. New York: Random House</ref><ref>{{cite web|url=http://www.shgresources.com/gems/birthflowers/|archive-url=https://archive.today/20120911093344/http://www.shgresources.com/gems/birthflowers/|url-status=dead|archive-date=2012-09-11|title=U101 College Search}}</ref> The [[zodiac]] signs are [[Aries (astrology)|Aries]] (until 19 April) and [[Taurus (astrology)|Taurus]] (20 April onward).<ref>The Earth passed the junction of the signs at 14:45 UT/GMT on April 19, 2020, and will pass it again at 20:33 UT/GMT on April 19, 2021.</ref><ref name=astrology>{{cite web |title=Astrology Calendar |url=https://www.yourzodiacsign.com/calendar/ |website=yourzodiacsign |access-date=March 29, 2020 |archive-date=March 29, 2020 |archive-url=https://web.archive.org/web/20200329204306/https://www.yourzodiacsign.com/calendar/ |url-status=live }} Signs in UT/GMT for 1950–2030.</ref>


[[File:Daisy ntgr.JPG|alt=Daisy flower|thumb|[[Bellis perennis|Daisy]] flower]] [[File:Sweet Pea (27711557850).jpg|alt=Sweet pea|thumb|[[Sweet pea]]]]
[[File:Daisy ntgr.JPG|alt=Daisy flower|thumb|[[Bellis perennis|Daisy]] flower]] [[File:Sweet Pea (27711557850).jpg|alt=Sweet pea|thumb|[[Sweet pea]]]]
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* [[Jazz Appreciation Month]]
* [[Jazz Appreciation Month]]
* [[Joint Policy Board for Mathematics|Mathematics and Statistics Awareness Month]]
* [[Joint Policy Board for Mathematics|Mathematics and Statistics Awareness Month]]
* [[Military brat (U.S. subculture)|Month of the Military Child]]<ref>{{cite web|title=The Month of the Military Child |url=https://www.dodea.edu/dodeaCelebrates/Military-Child-Month.cfm |website=Department of Defense Education Activity |publisher=DoDEA |access-date=5 April 2022}}</ref><ref>{{cite web|title=Month of the Military Child |url=https://www.defense.gov/Spotlights/Month-of-the-Military-Child/ |website=Department of Defense |access-date=5 April 2022}}</ref>
* [[Military brat (U.S. subculture)|Month of the Military Child]]<ref>{{cite web|title=The Month of the Military Child |url=https://www.dodea.edu/dodeaCelebrates/Military-Child-Month.cfm |website=Department of Defense Education Activity |publisher=DoDEA |access-date=5 April 2022}}</ref><ref>{{cite web |title=Month of the Military Child |url=https://www.war.gov/Spotlights/Month-of-the-Military-Child/ |website=Department of Defense |access-date=5 April 2022 }}{{Dead link|date=May 2026 |bot=InternetArchiveBot }}</ref>
* [[National Poetry Month]]
* [[National Poetry Month]]
* [[National Poetry Writing Month]]
* [[National Poetry Writing Month]]
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==== United States food months ====
==== United States food months ====
{{Unreferenced section|date=December 2025}}
* Fresh Florida Tomato Month
* Fresh Florida Tomato Month
* National Food Month
* National Food Month
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* [[Head and Neck Cancer Alliance#Oral, Head and Neck Cancer Awareness Week|Oral, Head and Neck Cancer Awareness Week]] ([[United States]]): April 13–19<ref>[https://headandneck.org/oral-head-neck-cancer-awareness-week-early-registration-now-open/]{{dead link|date=October 2021}}</ref>
* [[Head and Neck Cancer Alliance#Oral, Head and Neck Cancer Awareness Week|Oral, Head and Neck Cancer Awareness Week]] ([[United States]]): April 13–19<ref>[https://headandneck.org/oral-head-neck-cancer-awareness-week-early-registration-now-open/]{{dead link|date=October 2021}}</ref>
* [[List of observances in the United States by presidential proclamation#Annual special weeks recognized by presidential proclamation|National Park Week]] ([[United States]]): April 18–26
* [[List of observances in the United States by presidential proclamation#Annual special weeks recognized by presidential proclamation|National Park Week]] ([[United States]]): April 18–26
* [[Crime Victims' Rights Week]] ([[United States]]): April 19–25<ref>{{cite web |url=https://ovc.ncjrs.gov/ncvrw/ |title=National Crime Victims' Rights Week |publisher=United States Department of Justice Office for Victims of Crime |access-date=November 30, 2021 |url-status=live|archive-url=https://web.archive.org/web/20100214014130/http://ovc.ncjrs.gov:80/ncvrw/ |archive-date=February 14, 2010 }}</ref>
* [[Crime Victims' Rights Week]] ([[United States]]): April 19–25<ref>{{cite web |url=https://ovc.ncjrs.gov/ncvrw/ |title=National Crime Victims' Rights Week |publisher=United States Department of Justice Office for Victims of Crime |access-date=November 30, 2021 |url-status=live |archive-url=https://web.archive.org/web/20100214014130/http://ovc.ncjrs.gov/ncvrw/ |archive-date=February 14, 2010 }}</ref>
* [[National Volunteer Week]]: April 19–25
* [[National Volunteer Week]]: April 19–25
* [[European Immunization Week]]: April 20–26
* [[European Immunization Week]]: April 20–26
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===== Last Saturday =====
===== Last Saturday =====
* [[Children's Day]] ([[Colombia]])
* [[Children's Day]] ([[Colombia]])
* [[Rebuilding Together#National Rebuilding Day|National Rebuilding Day]] ([[United States]])
* [[Rebuilding Together#National Rebuilding Month|National Rebuilding Day]] ([[United States]])
* [[The Fragrance Foundation#National Sense of Smell Day|National Sense of Smell Day]] ([[United States]])
* [[The Fragrance Foundation#National Sense of Smell Day|National Sense of Smell Day]] ([[United States]])
* [[World Tai Chi and Qigong Day]]
* [[World Tai Chi and Qigong Day]]
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** [[Sikmogil]] (South Korea)
** [[Sikmogil]] (South Korea)
* [[April 6]]
* [[April 6]]
** International Asexuality Day
** [[Public holidays in Thailand|Chakri Day]] (Thailand)
** [[Public holidays in Thailand|Chakri Day]] (Thailand)
** [[National Beer Day (United Kingdom)]]
** [[National Beer Day (United Kingdom)]]
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** [[Muster (Texas A&M University)#A. and M. Day|A&M Day]] ([[Texas A&M University]])
** [[Muster (Texas A&M University)#A. and M. Day|A&M Day]] ([[Texas A&M University]])
** [[Civil Services of India#Civil Services Day|Civil Service Day]] (India)
** [[Civil Services of India#Civil Services Day|Civil Service Day]] (India)
** [[Public holidays in Russia#Regional public holidays|Day of Local Self-Government]] (Russia)
** [[Grounation Day]] ([[Rastafari movement]])
** [[Grounation Day]] ([[Rastafari movement]])
** [[Public holidays in Mexico#Civic holidays|Heroic Defense of Veracruz]] (Mexico)
** [[Public holidays in Mexico#Civic holidays|Heroic Defense of Veracruz]] (Mexico)

Latest revision as of 14:54, 11 May 2026

Template:Calendar/month/link on

April is the fourth month of the year in the Gregorian and Julian calendars. Its length is 30 days.

April is commonly associated with the season of spring in the Northern Hemisphere, and autumn in the Southern Hemisphere, where it is the seasonal equivalent to October in the Northern Hemisphere and vice versa.

History

File:Breviarium Grimani - April.jpg
April, Brevarium Grimani, fol. 5v (Flemish)
File:04 April - Percent of global area at temperature records - Global warming - NOAA.svg
In recent decades, the number of warm temperature records in April has outpaced cold temperature records over a growing portion of Earth's surface.[1]
File:1850- 04 April each year - Global average temperature changes.svg
Chart shows changes in global average temperature annually in April of each year[2]

The Romans gave this month the Latin name Aprilis[3] but the derivation of this name is uncertain. The traditional etymology is from the verb Template:Wikt-lang, Template:Gloss, in allusion to its being the season when trees and flowers begin to "open", which is supported by comparison with the modern Greek use of Template:Wikt-lang (Template:Translit, Template:Gloss) for spring. Since some of the Roman months were named in honor of divinities, and as April was sacred to the goddess Venus, her Veneralia being held on the first day, it has been suggested that Aprilis was originally her month Aphrilis, from her equivalent Greek goddess name Aphrodite (Aphros), or the Etruscan name Apru. Jacob Grimm suggests the name of a hypothetical god or hero, Aper or Aprus.[4]

April was the second month of the earliest Roman calendar,[5] before Ianuarius and Februarius were added by King Numa Pompilius about 700 BC. It became the fourth month of the calendar year (the year when twelve months are displayed in order) during the time of the decemvirs about 450 BC, when it was 29 days long. The 30th day was added back during the reform of the calendar undertaken by Julius Caesar in the mid-40s BC, which produced the Julian calendar.

The Anglo-Saxons called April ēastre-monaþ. The Venerable Bede says in The Reckoning of Time that this month Template:Wikt-lang is the root of the word Easter. He further states that the month was named after a goddess Eostre whose feast was in that month. It is also attested by Einhard in his work Vita Karoli Magni.

St George's day is the twenty-third of the month; and St Mark's Eve, with its superstition that the ghosts of those who are doomed to die within the year will be seen to pass into the church, falls on the twenty-fourth.[5]

In China the symbolic ploughing of the earth by the emperor and princes of the blood took place in their third month, which frequently corresponds to April.[5] In Finnish, April is huhtikuu, meaning slash-and-burn moon, when gymnosperms for beat and burn clearing of farmland were felled.

In Slovene, the most established traditional name is mali traven, the month when plants start growing. It was first written in 1466 in the Škofja Loka manuscript.[6]

The month April originally had 30 days; Numa Pompilius made it 29 days long; finally, Julius Caesar's calendar reform made it 30 days long again, which was not changed in the calendar revision of Augustus Caesar in 8 BC.

In Ancient Rome, the festival of Cerealia was held for seven days from mid-to-late April, but exact dates are still being determined. Feriae Latinae was also held in April, with the date varying. Other ancient Roman observances include Veneralia (April 1), Megalesia (April 10–16), Fordicidia (April 15), Parilia (April 21), Vinalia Urbana (April 23), Robigalia (April 25), and Serapia (April 25). Floralia was held April 27 during the Republican era, or April 28 on the Julian calendar, and lasted until May 3. However, these dates do not correspond to the modern Gregorian calendar.

The Lyrids meteor shower appears on April 16 – April 26 each year, with the peak generally occurring on April 22. The Eta Aquariids meteor shower also appears in April. It is visible from April 21 to May 20 each year, with peak activity on or around May 6. The Pi Puppids appear on April 23, but only in years around the parent comet's perihelion date. The Virginids also shower at various dates in April.

The "Days of April" (journées d'avril) is a name assigned in French history to a series of insurrections at Lyons, Paris and elsewhere, against the government of Louis Philippe in 1834, which led to violent repressive measures, and to a famous trial known as the procès d'avril.[5]

Symbols

Faceted diamond
Faceted diamond

April's birthstone is the diamond. The birth flower is the common daisy (Bellis perennis) or the sweet pea.[7][8] The zodiac signs are Aries (until 19 April) and Taurus (20 April onward).[9][10]

Daisy flower
Daisy flower
Sweet pea
Sweet pea

Observances

This list does not necessarily imply official status or general observance.

Month-long

File:Kobelwald Kirche Bild Chor.JPG
A fresco in a Catholic church in Switzerland representing the Resurrection of the Lord

United States

United States food months

TemplateStyles' src attribute must not be empty.

  • Fresh Florida Tomato Month
  • National Food Month
  • National Grilled Cheese Month
  • National Pecan Month
  • National Soft Pretzel Month
  • National Soyfoods Month

Non-Gregorian

(All Baha'i, Islamic, and Jewish observances begin at the sundown prior to the date listed, and end at sundown of the date in question unless otherwise noted.)

Movable

Variable; 2021 dates shown

First Wednesday

First Saturday

First Sunday

First full week

Second Wednesday
Second Thursday
Second Friday

Second Sunday

Week of April 14

Third Wednesday

Third Thursday

Third Saturday

Last full week of April

Week of April 23

Week of the new moon

Third Monday

Wednesday of last full week of April

First Thursday after April 18

Fourth Thursday
Last Friday

Last Friday in April to first Sunday in May

Last Saturday
Last Sunday
April 27 (April 26 if April 27 is a Sunday)
Last Monday
Last Wednesday

Fixed

File:Celebrazione del 2777 Natale di Roma - Pietas Comunità Gentile 2.jpg
Celebration of the 2777th Natale di Roma at the Circus Maximus

See also

References

  1. "Mean Monthly Temperature Records Across the Globe". National Centers for Environmental Information (NCEI) of the National Oceanic and Atmospheric Administration (NOAA). Link is an example for one month; for other months, change the "202501" in the preceding URL to yyyymm, where yyyy is the four-digit year and mm is the two-digit month (01=January through 12=December)
  2. .● Source for 1850- raw data: "Global Land and Ocean Temperature Anomalies". National Centers for Environmental Information (NCEI) of the National Oceanic and Atmospheric Administration (NOAA). Archived from the original on 26 March 2026.
     Updated data is accessible through Climate at a Glance Global Time Series / Globe / Global Time Series. Choose parameters: Surface: Land and Ocean / Parameter: Average Temperature Anomaly / Time Scale: 1-Month / Month: All Months / Start Year: 1850 / End Year: 20__.
     Technical note: data in chart is adjusted to reference period of 1850-1900 (representing pre-industrial era)
  3. "April" in Chambers's Encyclopædia. London: George Newnes, 1961, Vol. 1, p. 497.
  4. Jacob Grimm Geschichte der deutschen Sprache. Cap. "Monate"
  5. 5.0 5.1 5.2 5.3 File:Wikisource-logo.svg One or more of the preceding sentences incorporates text from a publication now in the public domainChisholm, Hugh, ed. (1911). "April". Encyclopædia Britannica. 2 (11th ed.). Cambridge University Press. p. 230.
  6. "Koledar prireditev v letu 2007 in druge informacije občine Dobrova–Polhov Gradec" [The Calendar of Events and Other Information of the Municipality of Dobrova–Polhov Gradec] (PDF) (in Slovenian). Municipality of Dobrova-Polhov Gradec. 2006. Archived from the original (PDF) on 2 November 2013.
  7. Kipfer, Barbara Ann (1997) The Order of Things. New York: Random House
  8. "U101 College Search". Archived from the original on 11 September 2012.
  9. The Earth passed the junction of the signs at 14:45 UT/GMT on April 19, 2020, and will pass it again at 20:33 UT/GMT on April 19, 2021.
  10. "Astrology Calendar". yourzodiacsign. Archived from the original on 29 March 2020. Retrieved 29 March 2020. Signs in UT/GMT for 1950–2030.
  11. "Virginia Governor - Ralph Northam - Proclamation". www.governor.virginia.gov. Archived from the original on 9 June 2019. Retrieved 9 June 2019.
  12. "Autism Awareness Month – Michael J. Dunleavy". gov.alaska.gov. 1 April 2019. Archived from the original on 9 June 2019. Retrieved 9 June 2019.
  13. "World Autism Month". Autism Speaks. Archived from the original on 17 June 2019. Retrieved 9 June 2019.
  14. "The Month of the Military Child". Department of Defense Education Activity. DoDEA. Retrieved 5 April 2022.
  15. "Month of the Military Child". Department of Defense. Retrieved 5 April 2022.[dead link]
  16. "Occupational Therapy Month". American Occupational Therapy Association. AOTA. Retrieved 31 March 2020.
  17. "National Rosacea Society designates April as "Rosacea Awareness Month"". Practical Dermatology. 3 April 2018. Retrieved 9 June 2021.
  18. "Rosacea Awareness Month Focuses on Management Options". Pharmacy Times. 1 April 2020. Retrieved 9 June 2021.
  19. [1][dead link]
  20. "National Crime Victims' Rights Week". United States Department of Justice Office for Victims of Crime. Archived from the original on 14 February 2010. Retrieved 30 November 2021.
  21. 21.0 21.1 Seol Song Ah (7 December 2015). "Kim Jong Un's birthday still not a holiday". Daily NK. Archived from the original on 7 January 2018. Retrieved 13 January 2017.

Template:Months