User:Pegasovagante/Sandbox/IT:Open Historical Map

Open Historical Map (OHM) è un sito che si avvale del software OpenStreetMap (OSM) come base per disegnare una carta storica open source liberamente modificabile. Scopo del progetto è creare la carta piú universale, dettagliata e obsoleta al mondo. È un po' come raccogliere tutta la cartografia vecchia e storica reperibile e riunirla tutta insieme. OHM si concentrerà sulla mappatura degli oggetti che OSM sa rilevare ottimamente (coste, confini, fabbriche, percorsi e luoghi d'interesse). Iniziative ulteriori potranno trattare imprese storiche, avvenimenti, persone e oggetti mobili).

Contribuiscono a OHM i membri della community di OHM, fornitori accademici di dati aggregati, associazioni ed enti di studî storici, studenti e istituzioni culturali e formative nel campo umanistico, appassionati di storia, fornitori di dati liberi (open data), attivisti per la conoscenza libera e quant'altri condividano dati cartografici. Un elogio particolare va tributato agli innumerevoli sviluppatori che hanno dedicato tempo e impegno alla ricca gamma di software e strumenti OSM che a loro volta rendono possibile OHM, pur non essendo ricompresi nel senso piú stretto fra gli «utenti di OHM», intesi come chi inserisce i dati cartografici e storici.

(Vedi tutte le sottopagine).

Pregiudizî

Land acknowledgement: impatto di colonialismo, migrazioni e deportazioni sulle fonti e sugli strumenti cartografici

[Tradotto dalla bozza: vedi questo paragrafo in inglese per aggiornamenti]

«È anche doveroso ricordare che della nostra storia fanno parte coloro che furono rapiti e deportati qui nel nome del colonialismo e dell'imperialismo. Dobbiamo studiare, salvaguardare e onorare la storia e le genti dei luoghi in cui, individualmente, tutti abitiamo. Rendiamo onore alle vite di tutti quelli che resistevano e tutt'oggi resistono all'oppressione coloniale e alla supremazia dei bianchi».
Dal Land Acknowledgement, conferenza virtuale 2020 della Art Libraries Society of North America.

Mappando gli oggetti storici, tutti dobbiamo tener presenti i pregiudizî e i punti di vista dei cartografi quando raffiguravano i popoli indigeni e le loro terre. Tutti dobbiamo aver presenti i pregiudizî che condizionano non solo le nostre fonti e le nostre prospettive e nomenclature, ma gli stessi strumenti tecnici e tecnologici che adoperiamo. La community di OHM richiede che quanti vi prendano parte tutti rispettino e tengano nella piú alta considerazione la storia delle genti indigene, e che tengano conto del fatto che la storia d'un luogo ben di rado ha origine dall'esplorazione e dall'insediamento di colonie, mantenendosi aperti alle tematiche del pluralismo e dell'inclusività anche in senso multietnico.

OHM Code of Conduct

OHM's Community is a civil, sharing, and respectful group. That said, codifying what that means is important and we have done so. Read the details of the OHM Code of Conduct here.

First-time visitors

Newcomers - if you've made it this far, you should know a little about who and what OHM is, that we care about acknowledging indigenous people, and have basic rules for decent, humane interaction.

If you like what you've read, please visit the OHM Basics page first.

OHM projects

Mappers working in OHM are encouraged to create project pages describing their work. This can provide context and framing that are not practical in the map itself and provide details on sourcing and source choices that don't fit easily into source=*.

Projects are grouped here: OHM Projects.

OHM resources

Please find sources to meet your project needs within the OHM Resources page. This page provides a place to list map, imagery and documentary sources that are appropriately licensed for use in the OHM project.

Fast answers for your OHM questions

• Slack: #openhistoricalmap on OSM US Slack
• #openhistoricalmap on Discord's OpenStreetMap World
• Historic@openstreetmap.org mailing list
• Frequently Asked Questions
• Twitter @openhistmap
• Facebook Group

More detailed, related, and technical sites

• Production OHM
• Dev / Staging OHM
• Open Historical Map Tasking Manager
• Open development issues (file your bugs and requests here!)
• Github: https://github.com/OpenHistoricalMap
• Open Historical Map Dev Roadmap
• Wikimaps Warper - the Wikimedia Foundation's map warper enables direct tracing of warped maps into OHM using the ID editor
• OpenStreetBrowser Historical (no "historical" optimizations yet, but feel free to create own categories)

OHM Streams

Various OHM contributors livestream. The current schedule may be found at Open Historical Map/OHM Streams.

Contributing

This page of the OHM wiki is currently being revised. Much has been moved to Open Historical Map/OHM Basics. Look there for an introduction to OHM editing.

Information about using historic imagery and maps with OHM is being put in the new Open Historical Map/Imagery page.

Tagging

For those familiar with OSM's tagging model and vocabulary, you'll be right at home here. OHM's tagging works generally the same as OSM, although some tags (like dates) are much more important in OHM.

Either way, please review this more detailed OHM tagging guide.

The current plan for OHM Life Cycle Tagging is to move forward with a version of the proposal in [Open Historical Map/Tags/LifeCycle]. Older proposals such as the date namespace suffix and the lifecycle prefix are no longer recommended.

Tracing a historic map in OHM

1. Find a cool map to trace. You can get some ideas for great maps here.
2. Check the copyright of the map you want to add
3. Add the map to Commons using the map template (add {{map}} to your file in Commons and fill out the fields "author", "source" and "description" -- or simply replace "{{Information" with "{{map")
4. Align the historic map using MapWarper by clicking on "Georeference the map in Wikimaps Warper" (see here for an example)
   1. Click on the "Rectify" tab and add *more than* 3 control points. Run the alignment and check the error, potentially fix control points until you have acceptable error (acceptable depends on your use case, if you have 100m errors, do not map buildings).
   2. Go to the tab "Export" and copy the tiles URL (this line "Tiles (Google/OSM scheme): http://warper.wmflabs.org/maps/tile/3274/{z}/{x}/{y}.png") or copy the line above if you want to use JOSM (right click on "for JOSM OpenStreetMap Editor")
5. Load the map in JOSM (using Edit->Preferences->WMS->+WMS to add WMS layer) or into the online iD editor (Background Settings -> Custom and copy-paste the PNG layer you get from the warper). It will show up as background and allow you to trace the old map!

Workflow for tracing Sanborn maps (large scale Fire insurance maps in the US)

Using the map

https://www.openhistoricalmap.org features an interactive map. Zoom in to see more details and adjust the slider to see the data at different points in time. A search box powered by Nominatim simultaneously searches all of history.

Many Wikipedia articles about places and events display geographical coordinates at the top-right corner. The coordinates link to the GeoHack tool, from which you can open the coordinates in a number of online map services, including OpenHistoricalMap.

Using the data

There are a variety of ways to use OpenHistoricalMap Data.

For smallish scale it is possible to download data using JOSM. Two alternatives now exist for larger volumes of data or larger areas:

• A weekly OHM planet file (see http://planet.openhistoricalmap.org/).
• A special Overpass instance at https://overpass-api.openhistoricalmap.org/api/interpreter. You can use it within Overpass turbo for OpenHistoricalMap or within the main Overpass turbo website (by setting the server to https://overpass-api.openhistoricalmap.org/api/ in Settings -> Server).

See also these pages for the legal attributions:

• Open Historical Map/Copyright - to start documenting copyright-related issues for OHM
• Open Historical Map/Contributors

Short-term plans

Plans have been moved to the new planning document Open Historical Map/Plans

Conversations

The list of places to talk OHM has been moved to Open Historical Map/OHM Basics#Communities

Bibliography

Presentations

• Ånäs, Susanna (November 8, 2014). “Wikimaps Expeditions”. State of the Map 2014. Buenos Aires: OpenStreetMap Foundation. https://harrywood.dev.openstreetmap.org/sotm2014-php/session.php?title=Wikimaps_Expedition. 
• Clough, Jerry (November 9, 2014). “Historical maps”. State of the Map 2014. Buenos Aires: OpenStreetMap Foundation. 
• Jenne, David (April 2, 2022). “Mapping History in Our National Parks” (Office Open XML Presentation). State of the Map U.S. 2022. Tucson, Arizona: OpenStreetMap U.S. https://slack-files.com/T029HV94T-F03ATD5UM3L-3e3ff49f5a. 
• deBruijn, Bert (October 21, 2017). “WikiWar: Historical Mapping Adventures”. State of the Map U.S. 2017. Boulder, Colorado: OpenStreetMap U.S. https://2017.stateofthemap.us/program/wikiwar-historical-mapping.html. 
• Evans, David; Meyer, Jeff; Warren, Rob et al. (September 6, 2013). “Open Historical Map: re-using obsolete information” (PDF). State of the Map 2013. Birmingham: OpenStreetMap Foundation. https://www.dbdump.org/~warren/publications/evans:sotm:2013/sotm:2013.pdf. 
• Grossner, Karl (November 5, 2014). “Focused Themes for Crowd­Sourced Map Digitization” (lightning talk). Moving Historical Geodata to the Web. New York City: New York Public Library. https://docs.google.com/presentation/d/1x1ecAdiNeXxkKw86Ks9WQwGcTj1z_d5tTvTEMhIXICc/edit#slide=id.g41226ab1b_0168. 
• Meyer, Jeff (October 13, 2012). “OSM & Online Time Machines”. State of the Map U.S. 2012. Portland, Oregon: OpenStreetMap U.S. https://www.slideshare.net/gwhathistory/osm-and-online-time-machines-sotm-us-2012-pdx. 
• Meyer, Jeff (September 8, 2019). “Open Historical Map: Vector Tiles & Other Updates”. State of the Map U.S. 2019. Minneapolis: OpenStreetMap U.S. https://www.slideshare.net/gwhathistory/open-historical-map-vector-tiles-other-updates. 
• Meyer, Jeff (October 30, 2020). “Open Historical Map: Approaching Critical Mass” (lightning talk). Connect 2020. OpenStreetMap U.S. https://docs.google.com/presentation/d/1bIUfJcK3GYeEWawEwtcbWZ5skz75niUYS76jF7QRWR0/edit. 
• Meyer, Jeff (February 10, 2021). “Open Historical Map (OHM) Overview” (lightning talk). Geo4LibCamp 2021. Stanford University. https://docs.google.com/presentation/d/1en4OyXYfSO5GqbYd2ieyWigN4Ns28NQdEGzWSWJDiMo/edit. 
• Meyer, Jeff (May 21, 2021). “Mapping USA's History on OpenHistoricalMap”. Mapping USA. OpenStreetMap U.S. 
• Roberto, Frankie (July 12, 2009). “Mapping History on Open Street Map”. State of the Map 2009. Amsterdam: OpenStreetMap Foundation. https://www.slideshare.net/frankieroberto/mapp-history-on-open-street-map. 
• Proudfoot, Nathan (May 21, 2021). “Mapping History in the Pacific Northwest”. Mapping USA. OpenStreetMap U.S. 
• Waters, Tim (June 14, 2014). “OpenHistoricalMap” (PDF). State of the Map Europe 2014. Karlsruhe. Archived from the original on August 4, 2016. http://web.archive.org/web/20160804233510/http://sotm-eu.org/slides/95-3.pdf. 
• Waters, Tim (November 5, 2014). “The OpenHistoricalMap Project” (lightning talk). Moving Historical Geodata to the Web. New York City: New York Public Library. https://docs.google.com/presentation/d/1x1ecAdiNeXxkKw86Ks9WQwGcTj1z_d5tTvTEMhIXICc/edit#slide=id.g41226ab1b_0548. 
• Waters, Tim (June 7, 2015). “Tech Changes to the OpenStreetMap Stack”. State of the Map U.S. 2015. New York City. https://www.slideshare.net/chippy/tim-waters-openhistoricalmap-sotmus-2015. 
• Waters, Tim (October 3, 2015). “Open Historical Map”. State of the Map Scotland 2015. Edinburgh. https://www.slideshare.net/chippy/tim-waters-openhistoricalmap-state-of-the-map-scotland-2015. 
• Welty, Richard (July 8, 2020). “OpenHistoricalMap”. Virtual Mappy Hours. OpenStreetMap U.S. 
• Welty, Richard (October 8, 2021). “OpenHistoricalMap: Historical geography, wiki-style”. WikiConference North America 2021. //wiki.openstreetmap.org/wiki/File:OpenHistoricalMap_Historical_Geography_Wiki_style.pdf.   English  español
• Welty, Richard (April 1, 2022). “Life Cycle in OpenHistoricalMap”. State of the Map U.S. 2022. Tucson, Arizona: OpenStreetMap U.S. https://www.slideshare.net/nfgusedautoparts/life-cycle-modeling-in-openhistoricalmap. 
• Welty, Richard (April 2, 2022). “The State of Time in OHM”. State of the Map U.S. 2022. Tucson, Arizona: OpenStreetMap U.S. https://www.slideshare.net/nfgusedautoparts/the-state-of-time-in-openhistoricalmap. 

Blog posts

• Arellano, Juan (July 2, 2021). “Mapping the Tawantinsuyo in OpenHistoricalMap”. Cyberjuan. https://cyberjuan.medium.com/mapping-the-tawantinsuyo-in-openhistoricalmap-c1c9ef156486. 
• Kang, E Roon; So, Wonyoung (29 August 2017). “Cheonggyecheon, Dongdaemun Gentrification: Technical Notes”. Seoul Libre Maps. https://medium.com/seoul-libre-maps/cheonggyecheon-dongdaemun-gentrification-technical-notes-375f69e5b2ad. 
• Marler, Gregory (21 July 2014). “Curating a Historical Map”. Living With Dragons. https://www.livingwithdragons.com/2014/07/curating-a-historical-map. 
• SK53 (11 December 2014). “City Stripping: building historical road layouts from todays data”. Maps Matter. https://sk53-osm.blogspot.com/2014/12/city-stripping-building-historical-road.html. 

Mailing list discussions

• Meyer, Jeff (December 5, 2012). “December Historical OSM Hangout Notes”. historic mailing list. https://lists.openstreetmap.org/pipermail/historic/2012-December/000067.html. 

External links

• OpenHistoricalMap
• OpenHistoricalMap ^GitHub
• Open-Historical-Map-Labs ^GitHub