Property talk:P1427

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start point
starting place of this journey, flight, voyage, trek, migration etc.

Description	the starting place of this journey, flight, voyage, trek, etc. (excl. spaceflight launch)
Represents	beginning (Q529711)
Data type	Item
Template parameter	|origin= in en:template:infobox aircraft occurrence
Domain	According to this template: event According to statements in the property: occurrence (Q1190554), spacecraft (Q40218), vehicle (Q42889), payload (Q21211206), scientific instrument (Q3099911), pilgrims' way (Q337912), itinerary (Q1322323), fictional occurrence (Q14136353) or expedition (Q2401485) When possible, data should only be stored as statements
Allowed values	places - airport, sea port, town, etc. (note: this should be moved to the property statements)
Example	2004 Tour de France, Stage 2 (Q282721) → Charleroi (Q81046) School of Civil Aviation Flight 111 (Q15644223) → Bucharest (Q19660) 1971 RAF Hercules crash (Q3997249) → Pisa International Airport (Q709169)
Tracking: same	no label (Q42533354)
Tracking: usage	Category:Pages using Wikidata property P1427 (Q20990037)
Tracking: local yes, WD no	no label (Q101364437)
<complementary property>	destination point (P1444)
See also	via (P2825)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties By value of property Most statements Fewest statements Most sitelinks Most linked wikis Total of sitelinks on items Most identifiers Fewest identifiers Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Database reports/Constraint violations/P1427 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 40,702 Main statement 39,572 97.2% of uses Qualifier 1,123 2.8% of uses Reference 7 <0.1% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

Value type “geographic entity (Q27096213), physical location (Q17334923), service provider (Q2169973), building (Q41176), mother ship (Q538685), astronomical object (Q6999)”: This property should use items as value that contain property “instance of (P31), subclass of (P279)”. On these, the value for instance of (P31), subclass of (P279) should be an item that uses subclass of (P279) with value geographic entity (Q27096213), physical location (Q17334923), service provider (Q2169973), building (Q41176), mother ship (Q538685), astronomical object (Q6999) (or a subclass thereof). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1427#Value type Q27096213, Q17334923, Q2169973, Q41176, Q538685, Q6999, SPARQL

Type “occurrence (Q1190554), spacecraft (Q40218), vehicle (Q42889), payload (Q21211206), scientific instrument (Q3099911), pilgrims' way (Q337912), itinerary (Q1322323), fictional occurrence (Q14136353), expedition (Q2401485)”: item must contain property “instance of (P31), subclass of (P279)” with classes “occurrence (Q1190554), spacecraft (Q40218), vehicle (Q42889), payload (Q21211206), scientific instrument (Q3099911), pilgrims' way (Q337912), itinerary (Q1322323), fictional occurrence (Q14136353), expedition (Q2401485)” or their subclasses (defined using subclass of (P279)). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1427#Type Q1190554, Q40218, Q42889, Q21211206, Q3099911, Q337912, Q1322323, Q14136353, Q2401485, SPARQL

Contemporaries:
if [item A] has this property (start point (P1427)) linked to [item B],
then [item A] and [item B] have to coincide or coexist at some point of history. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1427#Contemporary, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1427#Entity types

Scope is as main value (Q54828448), as qualifier (Q54828449): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1427#Scope, SPARQL

This property is being used by: ru:Шаблон:Авиакатастрофа, ru:Шаблон:Космическая экспедиция n:fr:Modèle:Article Tour de France 2016, n:fr:Modèle:Topic cat hy:Կաղապար:Տեղեկաքարտ Ավիավթար, hy:Կաղապար:Տիեզերական գիտարշավ, hy:Կաղապար:Տեղեկաքարտ Տիեզերական սարքավորում hu:Sablon:Műhold infobox, hu:Sablon:Űrrepülés infobox, hu:Sablon:Űrszonda infobox, hu:Sablon:Légikatasztrófa infobox it:Template:Infobox missione spaziale, it:Template:Tour musicale, it:Template:Infobox incidente aereo, it:Template:Viaggio d'esplorazione, it:Template:Incidente aereo, it:Template:Missione spaziale, it:Template:Trasporto pubblico, it:Template:Linea di metropolitana ca:Plantilla:Indret, ca:Plantilla:Infotaula esdeveniment, ca:Plantilla:Proves persona/actor, ca:Plantilla:Element hidrografia, ca:Plantilla:Infotaula de telescopi espacial, ca:Plantilla:Resum cursa ciclista, ca:Plantilla:Infotaula vehicle espacial, ca:Plantilla:Infotaula vehicle espacial/prova, ca:Plantilla:Infotaula programa espacial el:Πρότυπο:Διαστημική αποστολή, el:Πρότυπο:Διαστημική αποστολή/αμμοδοχείο en:Template:Infobox project ja:Template:Infobox project uk:Шаблон:Автодорога bn:টেমপ্লেট:তথ্যছক প্রকল্প gu:ઢાંચો:Infobox project, gu:ઢાંચો:Wikidata Infobox/core or:ଛାଞ୍ଚ:Infobox project sat:ᱪᱷᱟᱸᱪ:Infobox project te:మూస:Infobox project eu:Txantiloi:Etapa emaitza commons:Template:Wikidata Infobox/core cy:Nodyn:Wikidata Infobox es:Plantilla:Wikidata Infobox, es:Plantilla:Ficha de misión espacial, es:Plantilla:Ficha de vehículo espacial, es:Plantilla:Ficha de estructura, es:Plantilla:Ficha de astronáutica, es:Plantilla:Ficha de astronáutica/zona de pruebas id:Templat:Wikidata infobox, id:Templat:Kotak info Wikidata/inti mw:Template:Wikidata Infobox/core mr:साचा:विकिडाटा माहितीचौकट/core, mr:साचा:विकिडेटा माहितीचौकट/core sa:फलकम्:Wikidata Infobox ur:سانچہ:خانہ معلومات ویکی ڈیٹا/کور, ur:سانچہ:Wikidata Infobox/core q:fr:Modèle:Wikidata Infobox/core de:Vorlage:Wikidata Infobox/core ta:வார்ப்புரு:Wikidata Infobox/core az:Şablon:Aviasiya qəzası hi:साँचा:Wikidata Infobox/core as:সাঁচ:Infobox project cs:Šablona:Infobox - kosmické těleso, cs:Šablona:Infobox - stezka sv:Mall:Wikidata Infobox/core s:zh:Template:Wikidata Infobox/core ckb:داڕێژە:Wikidata Infobox/core pt:Predefinição:Wikidata Infobox/core ml:ഫലകം:Infobox project ku:Şablon:Wikidata Infobox/core mnw:ထာမ်ပလိက်:Wikidata Infobox/core ms:Templat:Kotak info projek my:တမ်းပလိတ်:Infobox project fr:Modèle:Infobox Programme spatial vec:Modeło:Infobox de Programa spasiałe d:Template:Wikidata Infobox/core kn:ಟೆಂಪ್ಲೇಟು:Infobox project no:Mal:Wikidata Infobox/core ko:틀:Infobox project, ko:틀:계획 정보 s:ban:Mal:Wikidata Infobox/core ban:Mal:Wikidata Infobox/core ne:ढाँचा:Infobox project lv:Veidne:Wikidata Infobox/core zh-min-nan:Pang-bô͘:Infobox project th:แม่แบบ:กล่องข้อมูล โครงการ voy:shn:ထႅမ်းပလဵတ်ႉ:Wikidata Infobox s:hi:साँचा:Wikidata Infobox/core nan:Pang-bô͘:Infobox project pa:ਫਰਮਾ:Infobox project yue:Template:Infobox project Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Opposite

I do not know how to mention it, but this property seems to be the opposite of destination point (P1444).

Kvardek du (talk) 09:50, 14 November 2014 (UTC)

all linear objekts

this property could be used for all linear (one dimentional) objekts, i.e. routes, streets, directions, etc--Avatar6 (talk) 09:20, 13 March 2016 (UTC)

Use on 'trek' violating constraint

Revision 631398949 added a constraint check enforcing the property to only be used on occurrences. This seems to go counter to the description describing it as the "starting place of this journey, flight, voyage, trek [...]", so items not necessarily associated with a temporal entity. This causes e.g. a hiking trail to be marked as possibly problematic. Is this intended behavior?  – The preceding unsigned comment was added by Pprtw (talk • contribs) at 16:34, 1 June 2018 (UTC).

I update it with trail (Q628179) as a vàlid subclasse, because it's not only valid for the journey (occurrence (Q1190554), but also the via where the journey is done by. Amadalvarez (talk) 05:13, 7 August 2018 (UTC)

I fear we are still producing many false positives. All instances of "space probe" have a starting point and many have a destination point as well, Q61742389 as example. In general all spaceflights, all individual airplane flights and so on have a starting point. --mfb (talk) 13:27, 10 April 2019 (UTC)

"Trek" (not track) is also subclass of occurrence (Q1190554). For the linear feature where a journey occurs, P559 (terminus) or P609 (terminus location), not P1427 (start point) or P1444 (destination point), should be used. Relevant type constraints have been removed. --Neo-Jay (talk) 15:00, 8 June 2021 (UTC)

Extend usage scenarios

I think this property should be extended to accept other usage scenarios, for example, the initial location of an activity, movement, era, etc. For example: Industrial Revolution (Q2269) started in (start point P1427) United Kingdom. We can use P495 today, but only when it refers to a country, not other locations like "Western Europe", "Liverpool", or anything else.