اوپن سٹریٹ میپ لوگو OpenStreetMap

Townlands.ie supports historic names

17 December 2016 کوں English وچ amapanda ᚛ᚐᚋᚐᚅᚇᚐ᚜ 🏳️‍⚧️ دی طرفوں پوسٹ کیتا ڳیا.

Townlands.ie now displays the historic name of areas! Townlands.ie is a website which shows the Irish traditional boundaries in OpenStreetMap, like townlands, civil parishes, baronies and counties. It’s very useful for Irish genealogical research, and mainting Ireland’s heritage into the digital era.

An example of this is County Offaly, which was initially created as a county in 1556 as “King’s County”, and was known as that until Irish independence in 1922, when it was changed to County Offaly. Neighbouring Co. Laois was known as “Queen’s County”.

We use the date namespace suffix to support this. The current OSM relation for Co. Offaly shows how to add this data: name:1556--1922=King's County, name:1922--=County Offaly

Townlands.ie currently supports the following 3 forms. Other options may be added later.

  • name:--YEAR: Name before YEAR
  • name:YEAR--: Name from YEAR to the present
  • name:YEAR1--YEAR2: Name between the years YEAR1 and YEAR2

There is already support for adding the name Griffith’s Valuation (with name:griffithsvaluation tag), and the 1901 and 1911 census names (name:census1901 and name:census1911). However that is often used for transcription errors.

Please add more historic names to OSM in Ireland!

ای میل آئیکان بلو سکائی دا آئیکن فیس بُک دا آئیکن لنکڈ اِن دا آئیکن میسٹوڈون دا آئیکن ٹیلی گرام دا آئیکن ایکس دا آئیکن

بحث مباحثہ

18 December 2016تے 01:08دے بارے RobJN دی رائے

You seem to have inspired a post about the use of these tags: osm.org/user/BushmanK/diary/40093

An alternate proposal is made here: osm.wiki/Talk:Proposed_features/Date_namespace#It_is_awful_from_the_point_of_view_of_querying_and_data_processing

18 December 2016تے 01:31دے بارے BushmanK دی رائے

@RobJN, it is not a proposal, it’s an illustration of how similar problem could be solved without disrespecting data usability.

But there still is a question: should any historical data be stored in the OSM database, keeping in mind the core principle of not mapping anything non-current.

30 January 2017تے 13:10دے بارے d1g دی رائے

Impressive, but now I prefer Wikidata for this task, e.g. “Ленинград”: https://www.wikidata.org/wiki/Q656#P1448 and https://www.wikidata.org/wiki/Q656#P17

Code in python would be slightly longer than 30L, but I appreciate how data is layouted in WD so that you don’t need to unparse anything.

31 January 2017تے 09:14دے بارے amapanda ᚛ᚐᚋᚐᚅᚇᚐ᚜ 🏳️‍⚧️ دی رائے

Impressive, but now I prefer Wikidata for this task, e.g. “Ленинград”: https://www.wikidata.org/wiki/Q656#P1448 and https://www.wikidata.org/wiki/Q656#P17

Cool. I don’t really know anything about wikidata or how to use it though, so I kept it all in OpenStreetMap

31 January 2017تے 09:32دے بارے d1g دی رائے

Simplest way is to fetch results using

Database downloads and toolkits can be found here:

so I kept it all in OpenStreetMap

It is impossible to have qualifiers separate from properties in OSM: https://www.wikidata.org/wiki/Special:MyLanguage/Help:Qualifiers without parsing; furthermore, almost everything is multilingual.

31 January 2017تے 09:42دے بارے amapanda ᚛ᚐᚋᚐᚅᚇᚐ᚜ 🏳️‍⚧️ دی رائے

That all look really complicated, and looks like I’d have to learn how Wikidata works. It’s something I’d like to learn, but I don’t have the time right now. I’d also have to query a US server, which has obviously bad privacy implications.

It’s not impossible to have it in OSM, because I’ve already put it in OSM. name:1556--1922=King's County is pretty readable. Sure it might not be as full featured as other systems, but it works, it’s readable, it’s easy to enter, and it’s deployed now. “Perfect is the enemy of done” and all that. 😄

31 January 2017تے 10:16دے بارے d1g دی رائے

Thing that I can access data using SPARQL/CSV query without a line of code other than SPARQL. Not only it is perfect, it takes 4 minutes to do so and data will be up-to-date.

If you have interest, materials can be found here: https://www.wikidata.org/wiki/Wikidata:SPARQL_query_service/Wikidata_Query_Help

31 January 2017تے 10:27دے بارے amapanda ᚛ᚐᚋᚐᚅᚇᚐ᚜ 🏳️‍⚧️ دی رائے

Thing that I can access data using SPARQL/CSV query without a line of code other than SPARQL. Not only it is perfect, it takes 4 minutes to do so and data will be up-to-date.

I have 65,000 objects. Can I make that many queries to Wikidata? At 4 minutes a pop, it’ll take 6 months to populate my database. I’m currently updating townlands.ie every day, and want to keep that.

(that query link takes less than 4 minutes for me, probably caching)

31 January 2017تے 10:42دے بارے amapanda ᚛ᚐᚋᚐᚅᚇᚐ᚜ 🏳️‍⚧️ دی رائے

I’m sure Wikidata is great. And it’s something I’d like to know more about. But I don’t have the time now. And what I have works now, so I don’t want to go writing everything to rely on an external service which has a more full featured and complicated data model, when it’s not going to provide any benefit.

31 January 2017تے 11:11دے بارے d1g دی رائے

Can I make that many queries to Wikidata?

When you enter data for 60K+ items you can query “all cities in country with property P1448”. It should work, you can limit results if needed.

But I don’t have the time now

when it’s not going to provide any benefit

It won’t harm you, you don’t need to change anything yet. It can be that you will never switch to Wikidata API or WDQS, but you can contribute. You can donate data and wait when somebody will pick it up:

https://www.wikidata.org/wiki/Wikidata:Data_donation#Why_add_data_to_Wikidata

31 January 2017تے 12:26دے بارے amapanda ᚛ᚐᚋᚐᚅᚇᚐ᚜ 🏳️‍⚧️ دی رائے

You can donate data and wait when somebody will pick it up:

Wikidata is CC0 “Public domain” licenced. This data is OSM derived, so you can’t import it into Wikidata. I also won’t donate my data to a non-share-alike, corporate friendly licence like CC0.

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