Wikidata:Property proposal/OHM Relation ID

Open Historical Map Relation ID

Originally proposed at Wikidata:Property proposal/Generic

   Done: OpenHistoricalMap relation ID (P8424) (Talk and documentation)

Description	Identifies a relation in the Open Historical map. Similar to OpenStreetMap relation ID (P402) but for OHM.
Represents	OpenHistoricalMap (Q25384440)
Data type	External identifier
Example 1	Grand Duchy of Baden (Q186320) → 2660798
Example 2	Grand Duchy of Hesse (Q20135) → 2661272
Example 3	Kingdom of Württemberg (Q159631) → 2661269
Expected completeness	always incomplete (Q21873886)
Formatter URL	https://www.openhistoricalmap.org/relation/$1
See also	OpenStreetMap relation ID (P402)

Motivation

One of the main limitations of Open Street Map and OpenStreetMap relation ID (P402) is that it does not allow us to link to historic entities, such as demolished buildings or previous political entities. Often it would be interesting to see where these entities were and link to their borders and locations. Unfortunately coordinate location (P625) is often insufficient for larger entities such as states or building complexes. Open Historical Map would allow us to do that for instances such as World Trade Center (Q11235), Grand Duchy of Baden (Q186320) and many others. Adding this property would allow us to link to many more historical sites/buildings/entities and link them to Wikidata. Best --Hannes Röst (talk) 15:36, 6 July 2020 (UTC)

Warning: OHM contributors - if you do not already have a Wikidata account / have not made Wikidata contributions in the past, please do not vote here. You can share your enthusiasm for this proposal on the discussion page, or even better, by signing up and contributing to Wikidata. Jeffme (talk) 20:04, 11 July 2020 (UTC)

Discussion

•  Support - Valentina.Anitnelav (talk) 13:05, 8 July 2020 (UTC)
•  Support --Adam Harangozó (talk) 17:38, 9 July 2020 (UTC)
•  Support. YULdigitalpreservation (talk) 15:53, 10 July 2020 (UTC)
•  Support - Cvb (talk) 10:20, 11 July 2020 (UTC)
•  Support - Karthoo (talk) 15:47, 11 July 2020 (UTC)
•  Support – Minh Nguyễn ^💬 17:58, 11 July 2020 (UTC)
•  Support – Jeffme ^💬 19:11, 11 July 2020 (UTC)
•  Support – Danrademacher
•  Support Arlo Barnes (talk) 20:04, 11 July 2020 (UTC)
•  Support --Daniel Baránek (talk) 20:53, 11 July 2020 (UTC)
•  Support – Bert de Bruijn
•  Support --Jneubert (talk) 13:54, 13 July 2020 (UTC)

@Hannes Röst, Jeffme, Valentina.Anitnelav, Adam Harangozó, YULdigitalpreservation, Cvb: @Karthoo, Mxn, Danrademacher, Arlo Barnes, Daniel Baránek: @Bert de Bruijn, Jneubert:  Done OpenHistoricalMap relation ID (P8424) Pamputt (talk) 08:52, 14 July 2020 (UTC)