Research + corpus-building uses. Benchmarks don’t count.
The drawers
A tool can be filed in more than one drawer
DRAWER VII
Mapping & GIS
Historical places, boundaries and movement on maps.
Guide cards
Counts research and corpus-building uses in the window, plus “I’m using this now” check-ins. Benchmarks don’t count.
tool · No. 070
QGIS
Free desktop GIS. Historians use it to georeference scanned old maps, geocode places from censuses and directories, and trace historical features in layers.
At a glance
Maker
QGIS project (volunteer community)
Released
2002 (now 4.2)
Licence
Open source (GPL-2+)
Cost
Free
Runs
Desktop (Windows, macOS, Linux)
Skill
No code (steep learning curve)
Historian’s notes
Where your sources goFully local: you work with map files on your own computer.
How it’s been testedWeighed against ArcGIS by a historian (Colson, IHR blog 2016): free, but with fewer analysis tools.
Known problems on historical sourcesGeoreferencing old maps carries over the original survey’s errors and forces fuzzy historical boundaries into hard lines. Most studies never report that uncertainty.
Nobody has said they’re using it in 2026 yet.
“I’m using this now” asks you to sign in with ORCID.
One count per person per year; it adds to Trending, and names are never shown.