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#30DayMapChallenge 
Day 
: Conflict
I figured a lot of mappers will create maps about recent wars and conflicts so I decided to create a map about #WorldWarI and see if #Wikidata is a good enough source for its battles, conflicts, and military operations.
I also wanted to know if there are any open data sources for historical borders, and I found one, CShapes! https://icr.ethz.ch/data/cshapes/
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I’m not sure if #Wikidata is complete or accurate but looking at the map, and not being a WW1 expert, I’m actually surprised that there’s very little activity inside #Germany. The Western Front is quite obvious, and southern #Finland is quite active. The Middle East is also seeing a lot of action.
I again used my Day 13 new tool #D3js to render an Albers equal-area map of #Europe with standard parallels at 35°N and 65°N.
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@seav what's the point right in the middle of France? A bit far from the front, this one
@seav@en.osm.town@julbriman According to Wikidata, it's the Battle of the Frontiers: https://www.wikidata.org/wiki/Q687572
I’m quite sure the coordinates in Wikidata are wrong because they’re too imprecise and are far from the front lines.
@seav oh, I see. That's not really a battle like Verdun or Gallipoli, more like a series of fights all along the Western front. Not sure one can actually pinpoint coordinates for such an event (imagine having coordinates on the item "World War I"…)
@julbriman oh I see. In that case, I just deleted the coordinates for this in Wikidata. (The coordinates are unreferenced anyway, so deleting it is fair game.) 