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#openhistoricalmap

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OpenHistoricalMap<p>Territorial evolution of <a href="https://mapstodon.space/tags/Italy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Italy</span></a>, 1861–2025, by Wikimedia Commons user “Nuclear Chain Reaction” based on <a href="https://mapstodon.space/tags/OpenHistoricalMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHistoricalMap</span></a> and <a href="https://mapstodon.space/tags/NaturalEarth" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NaturalEarth</span></a> data</p><p><a href="https://commons.wikimedia.org/wiki/File:Territorial_evolution_of_Italy,_1861–2025.webm" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">commons.wikimedia.org/wiki/Fil</span><span class="invisible">e:Territorial_evolution_of_Italy,_1861–2025.webm</span></a></p><p><a href="https://mapstodon.space/tags/HistoricBoundaries" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HistoricBoundaries</span></a> <a href="https://mapstodon.space/tags/ItalianHistory" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ItalianHistory</span></a></p>
Richard Welty<p>as a side effect on adding a <a href="https://en.osm.town/tags/GhostTrack" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GhostTrack</span></a> to <a href="https://en.osm.town/tags/OpenHistoricalMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHistoricalMap</span></a>, i've added a few more tiles to my mapwarper mosaic of a 1952 USGS aerial pass over eastern upstate NY. working on the west side of the area so that i can work on US 20 and NY 7 out to the spot where they cross in Duanesburg. 1/2</p>
OpenHistoricalMap<p>Despite all the mega boundary mapping lately, our map just got a lot leaner and faster. Map tiles have shrunk by as much as 96% compared to last year! <a href="https://mapstodon.space/tags/MicDrop" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MicDrop</span></a></p><p>Also in this month’s update, some nice tweaks and additions to the main style and a proper sendoff to <span class="h-card" translate="no"><a href="https://mapstodon.space/@run_for_funner" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>run_for_funner</span></a></span>:</p><p><a href="https://forum.openhistoricalmap.org/t/better-performance-less-clutter-and-the-end-of-an-era/426" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">forum.openhistoricalmap.org/t/</span><span class="invisible">better-performance-less-clutter-and-the-end-of-an-era/426</span></a></p><p><a href="https://mapstodon.space/tags/performance" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>performance</span></a> <a href="https://mapstodon.space/tags/VectorTiles" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>VectorTiles</span></a> <a href="https://mapstodon.space/tags/OpenHistoricalMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHistoricalMap</span></a></p>
Richard Welty<p>been a while since i put a new <a href="https://en.osm.town/tags/GhostTrack" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GhostTrack</span></a> into <a href="https://en.osm.town/tags/OpenHistoricalMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHistoricalMap</span></a>, but today i added Victoria Speedway, a clay oval that started as a horse track and ran cars from 1960-1966 near the <a href="https://en.osm.town/tags/CapitalDistrict" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CapitalDistrict</span></a> of <a href="https://en.osm.town/tags/NewYork" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NewYork</span></a> . link is to my website, showing the track overlaid on <a href="https://en.osm.town/tags/OpenStreetMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenStreetMap</span></a> <a href="https://en.osm.town/tags/AutoRacing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AutoRacing</span></a> <a href="https://en.osm.town/tags/MotorRacing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MotorRacing</span></a> <a href="https://en.osm.town/tags/History" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>History</span></a></p>
OpenHistoricalMap<p>Thanks to <span class="h-card" translate="no"><a href="https://mstdn.social/@bmacs001" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>bmacs001</span></a></span>, <a href="https://mapstodon.space/tags/OpenHistoricalMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHistoricalMap</span></a> has comprehensive coverage of <a href="https://mapstodon.space/tags/NewJersey" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NewJersey</span></a> municipality boundaries over time. Watch the state get divvied up into counties, townships, boroughs, cities, towns, and villages in this mesmerizing <a href="https://mapstodon.space/tags/TimeSeries" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TimeSeries</span></a>:</p><p><a href="https://www.reddit.com/r/newjersey/comments/1j4e1od/the_evolution_of_new_jerseys_county_and_municipal/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">reddit.com/r/newjersey/comment</span><span class="invisible">s/1j4e1od/the_evolution_of_new_jerseys_county_and_municipal/</span></a></p><p><a href="https://mapstodon.space/tags/Boroughitis" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Boroughitis</span></a> <a href="https://mapstodon.space/tags/JerseyFresh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>JerseyFresh</span></a></p>
OpenHistoricalMap<p>In the past month, the <a href="https://mapstodon.space/tags/OpenHistoricalMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHistoricalMap</span></a> community added 33,818 dated elements, 3,899 buildings, and 3,121 railroad miles. The average age of a dated element fell by one week, and the average year shifted one month earlier. All this with the help of 14 new contributors – welcome!</p><p><a href="https://wiki.openstreetmap.org/wiki/OpenHistoricalMap/Statistics" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">wiki.openstreetmap.org/wiki/Op</span><span class="invisible">enHistoricalMap/Statistics</span></a></p>
OpenHistoricalMap<p>In the past month, the <a href="https://mapstodon.space/tags/OpenHistoricalMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHistoricalMap</span></a> community added 62,726 dated elements, 9,621 buildings, and 5,324½ railroad miles. The average age of a dated element fell by about two years, and the average year shifted about one year later. All this with the help of 29 new contributors – welcome!</p><p><a href="https://wiki.openstreetmap.org/wiki/OpenHistoricalMap/Statistics" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">wiki.openstreetmap.org/wiki/Op</span><span class="invisible">enHistoricalMap/Statistics</span></a></p>
OpenHistoricalMap<p>If you edit <a href="https://mapstodon.space/tags/OpenHistoricalMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHistoricalMap</span></a> in <a href="https://mapstodon.space/tags/JOSM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>JOSM</span></a> or browse the map in <a href="https://mapstodon.space/tags/DarkMode" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DarkMode</span></a>, pay attention to this month’s website upgrade:</p><p><a href="https://forum.openhistoricalmap.org/t/more-secure-logins-dark-mode-and-more-predictability/397" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">forum.openhistoricalmap.org/t/</span><span class="invisible">more-secure-logins-dark-mode-and-more-predictability/397</span></a></p>
Richard Welty<p><span class="h-card" translate="no"><a href="https://en.osm.town/@mvexel" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>mvexel</span></a></span> when we started talking about finding an umbrella for <a href="https://en.osm.town/tags/OpenHistoricalMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHistoricalMap</span></a> we briefly considered the linux foundation, but it became clear almost instantly that with the Charter projects framework, OSM US was a better choice in every way. it was not particularly obvious what the linux foundation was really about at the time.</p>
OpenHistoricalMap<p>In the past month, the <a href="https://mapstodon.space/tags/OpenHistoricalMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHistoricalMap</span></a> community added 63,344 dated elements, 7,856 buildings, and 6,101 railroad miles. The average age of a dated element rose by 6 weeks, and the average year shifted over 10 months later. All this with the help of 29 new contributors – welcome!</p><p><a href="https://wiki.openstreetmap.org/wiki/OpenHistoricalMap/Statistics" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">wiki.openstreetmap.org/wiki/Op</span><span class="invisible">enHistoricalMap/Statistics</span></a></p>
Midgard<p><span class="h-card" translate="no"><a href="https://en.osm.town/@openrailwaymap" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>openrailwaymap</span></a></span> Thanks for <a href="https://OpenRailwayMap.org" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">OpenRailwayMap.org</span><span class="invisible"></span></a>!</p><p>ORM renders abandoned and razed rails. Many OSM communities understandably frown upon adding features that aren't visible on the field any more, which railway=razed is.</p><p>Would it be an idea to stop rendering railway=abandoned and railway=razed from <a href="https://framapiaf.org/tags/OpenStreetMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenStreetMap</span></a> and instead pull in historical railways from <a href="https://framapiaf.org/tags/OpenHistoricalMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHistoricalMap</span></a>? <a href="https://framapiaf.org/tags/OpenRailwayMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenRailwayMap</span></a> could even grow a dedicated "history" layer.</p><p>I think this would be beneficial for ORM, OHM and OSM!</p>
SK53<p><span class="h-card" translate="no"><a href="https://en.osm.town/@nfgusedautoparts" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>nfgusedautoparts</span></a></span> absolutely fantastic book, completely restarted my interest. Must have bought it 25 years ago : from was a specialist remaindered bookshop in the local town.</p><p>Has everything from deep-seated organisational issues through to a detailed account of the action. There's a bit about ships chronometer not being synchronised which I used to include if talking about <a href="https://en.osm.town/tags/OpenHistoricalMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHistoricalMap</span></a></p>
SK53<p><span class="h-card" translate="no"><a href="https://mastodon.ie/@BUnicycling" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>BUnicycling</span></a></span> <span class="h-card" translate="no"><a href="https://mastodon.social/@abbe98" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>abbe98</span></a></span> might be able to help on this (a not so-old <a href="https://en.osm.town/tags/OpenHistoricalMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHistoricalMap</span></a> hand)</p>
Matt Clifton<p>Making contributions to OHM is so time consuming! It is kind of fun looking through old newspapers, though. </p><p><a href="https://en.osm.town/tags/OpenHistoricalMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHistoricalMap</span></a> <a href="https://en.osm.town/tags/OpenStreetMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenStreetMap</span></a></p>
OpenHistoricalMap<p>Lots of improvements just landed for the maps on our homepage, and more are on the way!</p><p><a href="https://forum.openhistoricalmap.org/t/close-out-the-year-in-style-with-amenities-boundaries-and-more/357" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">forum.openhistoricalmap.org/t/</span><span class="invisible">close-out-the-year-in-style-with-amenities-boundaries-and-more/357</span></a></p><p><a href="https://mapstodon.space/tags/OpenHistoricalMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHistoricalMap</span></a> <a href="https://mapstodon.space/tags/LocalHistory" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>LocalHistory</span></a> <a href="https://mapstodon.space/tags/borders" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>borders</span></a> <a href="https://mapstodon.space/tags/localization" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>localization</span></a> <a href="https://mapstodon.space/tags/localisation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>localisation</span></a></p>
OpenHistoricalMap<p>In the past month, the <a href="https://mapstodon.space/tags/OpenHistoricalMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHistoricalMap</span></a> community added 63,232 dated elements, 5,901 buildings, and 5,802¼ railroad miles. The average age of a dated element fell by over 11 months, and the average year shifted about 10 months later. All this with the help of 17 new contributors – welcome!</p><p>These statistics are updated monthly on the wiki, but you can run an <a href="https://mapstodon.space/tags/Overpass" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Overpass</span></a> query at any time to get the most up-to-date figures. <a href="https://wiki.openstreetmap.org/wiki/OpenHistoricalMap/Statistics" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">wiki.openstreetmap.org/wiki/Op</span><span class="invisible">enHistoricalMap/Statistics</span></a></p>
OpenHistoricalMap<p>Now you can follow <a href="https://mapstodon.space/tags/OpenHistoricalMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHistoricalMap</span></a> on <a href="https://mapstodon.space/tags/Bluesky" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Bluesky</span></a> via <a href="https://mapstodon.space/tags/BridgyFed" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BridgyFed</span></a>: <a href="https://bsky.app/profile/ohm.mapstodon.space.ap.brid.gy" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">bsky.app/profile/ohm.mapstodon</span><span class="invisible">.space.ap.brid.gy</span></a></p>
Open Source San José<p>Dreary weather doesn’t deter our local community of <a href="https://sfba.social/tags/OpenStreetMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenStreetMap</span></a> and <a href="https://sfba.social/tags/OpenHistoricalMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHistoricalMap</span></a> contributors – we just head indoors and <a href="https://sfba.social/tags/MapFromHome" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MapFromHome</span></a>. Find out what your fellow mappers have been up to at <a href="https://sfba.social/tags/SouthBayMapNight" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SouthBayMapNight</span></a>, tonight online from 7 to whenever.</p><p><a href="https://osmcal.org/event/3162/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">osmcal.org/event/3162/</span><span class="invisible"></span></a><br><a href="https://www.meetup.com/bay-area-openstreetmappers/events/304430166/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">meetup.com/bay-area-openstreet</span><span class="invisible">mappers/events/304430166/</span></a></p>
Open Source San José<p>At tonight’s <a href="https://sfba.social/tags/SouthBayMapNight" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SouthBayMapNight</span></a>, we’re going to talk about… you guessed it: <a href="https://sfba.social/tags/OpenStreetMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenStreetMap</span></a> and <a href="https://sfba.social/tags/OpenHistoricalMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHistoricalMap</span></a>. Join us online from 7 to whenever.</p><p>RSVP at <a href="https://osmcal.org/event/3161/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">osmcal.org/event/3161/</span><span class="invisible"></span></a> or <a href="https://www.meetup.com/bay-area-openstreetmappers/events/304175788/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">meetup.com/bay-area-openstreet</span><span class="invisible">mappers/events/304175788/</span></a></p>
Richard Welty<p><span class="h-card" translate="no"><a href="https://mastodon.social/@migurski" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>migurski</span></a></span> looks like an <a href="https://en.osm.town/tags/OpenHistoricalMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenHistoricalMap</span></a> project to me.</p>
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