There are a lot of Historical maps at Lantmäteriet in Sweden the Swedish mapping, cadastral and land registration authority see [[ https://en.wikipedia.org/wiki/Lantm%C3%A4teriet | Wiki ]]
**Status**
# A Facebook question has been asked and we have got feedback
# A proof of concept has been done on Swedish WIkipedia with 2000 Swedish Church parishes see [[ https://sv.wikipedia.org/wiki/Anv%C3%A4ndare:Salgo60/TestT203390 | Användare:Salgo60/TestT203390 ]] and the result is more than satisfying
# **Next step**
## Get feedback from Lantmäteriverket if this is recommended
## Decide if and how the function should be used on sv:WIkipedia ( I guess in a infobox for Swedish Church Parishes "församlingar")
## Create an external tool that can be used by e.g. [T200181] ==>
### they send the church archives NAD number
### we finds the associated Wikidata object
### we will use the [[https://en.wikipedia.org/wiki/World_Geodetic_System#WGS84| WGS84 coordinate ]] for the WD object and translate it to [[ https://sv.wikipedia.org/wiki/SWEREF_99_TM | SWEREF 99 TM ]] and then redirect it to **Historical maps** see [[ https://tools.wmflabs.org/hub/ | Wikidata tool hub ]] using the same concept - [[ https://github.com/maxlath/hub | github ]]
#### example NAD [[ https://sok.riksarkivet.se/?postid=ArkisRef%20SE/HLA/1010201 | SE/HLA/1010201 ]] = Söderala finds WD object [[ https://www.wikidata.org/wiki/Q10688470 | Q10688470 ]] that has [[ https://www.wikidata.org/wiki/Q10688470#P625 | property 625 ]] = [[ https://tools.wmflabs.org/geohack/geohack.php?params=61.280569444444_N_16.956805555556_E_globe:earth&language=sv | 61°16'50.05"N, 16°57'24.50"E ]] ==> we convert that to a SWEREF 99 TM box
##### //box created// xMin=604800&xMax=604900&yMin=6795600&yMax=6795700 ==>
##### Swedish Historical [[ https://historiskakartor.lantmateriet.se/arken/s/searchresult.html?archive=GEOIN&firstMatchToReturnLMS=1&firstMatchToReturnREG=1&firstMatchToReturnRAK=1&xMin=604800&xMax=604900&yMin=6795600&yMax=6795700 | map link ]] ==>
{F25661257,width=600}
==> we can display "Sockenkarta" from 1654 [[ https://historiskakartor.lantmateriet.se/arken/s/show.html?showmap=true&archive=LMS&nbOfImages=1&sd_base=lms2&sd_ktun=4c4d535f5634392d313a31 | link ]]
{F25661278}
**User case:** as a person doing genealogy or reading about a Swedish Church parish "församling" or a Swedish administrative parish "socken" would like to have an easy way to show Historical maps for this area in the same way as we today can link
- The Swedish National Archives churchbooks
- SCB maps for the church parish "församling" 2008
- Swedish WIkipedia article
- Open Street maps
Example search Historical maps {F25631068,width=300}
Example showing the Administrative Parish "socken" map from 1654
{F25631300, width=300}
Example what we link to today
{F23988802,width=800}
== see also ==
* handledning [[ https://www.lantmateriet.se/globalassets/kartor-och-geografisk-information/historiska-kartor/handledning-historiska-kartor.pdf?qry=historiska%20kartor | historiska kartor.pdf ]]
how you can use this with just having the NAD number
** {T200181}
** {T200515}
[[ https://www.facebook.com/groups/345973895882090/ | Facebook group ]] in Swedish about the semantic web and genealogy
{F25636319,width=500}