Wikidata:Property proposal/announcement date

announcement date

Originally proposed at Wikidata:Property proposal/Generic

   Withdrawn

Description	date when the existence or future existence of an entity is made public
Data type	Point in time
Template parameter	announcement date
Domain	item
Example 1	Linux kernel (Q14579) → 1991-08-25 [1]
Example 2	Australia 108 (Q4823550) → 2014-06-27 [2]
Example 3	2017 New Zealand general election (Q18167358) → 2017-02-01 [3]
Example 4	Tesla Roadster (second generation) (Q43253563) → 2017-11-16 [4]
Example 5	Prince Archie of Sussex (Q62938826) → 2018-10-15 [5]
Planned use	use announcement dates as appropriate when editing items for electronic devices
Expected completeness	always incomplete
See also	inception (P571), publication date (P577), time of discovery or invention (P575), date of first performance (P1191), production date (P2754), time of earliest written record (P1249), date of commercialization (P5204)

Motivation

It's frequently occurs that a future product or event will be publicly announced well before the product is available for sale or the event takes place. However, inception (P571) is too vague, since we may want to pick either an earlier date when the development of the entity had already started, or a later date when the entity actually exists.

Discussion

•  Oppose. Use significant event (P793). --Yair rand (talk) 04:33, 22 May 2019 (UTC)

• You could say that about any of the date properties. This one is somewhat common. Ghouston (talk) 04:54, 22 May 2019 (UTC)
• I added the significant event (P793) statement on Linux kernel (Q14579), for comparison. People are also tempted to misuse other date properties, like the date of first performance (P1191) and publication date (P577) statements on Tesla Roadster (second generation) (Q43253563). Product development is a process, and it's not obvious exactly which dates should be recorded and with which properties. I can't find a previous proposal to introduce an announcement date, although it's mentioned in Wikidata:Property_proposal/Archive/47#P2669 which successfully added another date in the product life cycle. Ghouston (talk) 05:51, 22 May 2019 (UTC)

@Ghouston: See Wikidata:Property proposal/Public presentation - I think that's the same idea, no? And it's been declared ready.. ArthurPSmith (talk) 18:26, 22 May 2019 (UTC)

@ArthurPSmith: Thanks, it does seem to be identical apart from the naming. I guess this one can be closed as a duplicate. Ghouston (talk) 23:33, 22 May 2019 (UTC)