Choropleth story maps in 1826: History
Choropleth story maps decides what is being compared in 1826 under “History.” The figure that must stay on the axis is 1826. Drawing it larger does not create a unit. Look first for a cut axis and a missing key. When the story is: regional comparisons, civics assignments, territory KPIs.
Shade regions by a rate - elections, health, sales - with open geo stacks and honest color scales. Choropleth story maps encodes values as color of administrative regions mapped to a quantitative rate. Baron Charles Dupin (1826); modern TopoJSON + D3 geo pipelines. In reports, ads and assignments it fits regional comparisons, civics assignments, territory KPIs. Skip it when raw counts without normalizing by population or area.
This page gathers anatomy, fit, craft, failure modes and work / ads / school recipes for Choropleth story maps. When should I pick Choropleth story maps? When should I avoid Choropleth story maps? Skip it in cases like: raw counts without normalizing by population or area. Baron Charles Dupin (1826); modern TopoJSON + D3 geo pipelines
color of administrative regions mapped to a quantitative rate Yes if one claim is visible at a glance in Meta, Google and retail print; otherwise link to a full figure. Yes for lab reports and poster boards if axes, units and a source line are present. Excel or Google Sheets or PowerPoint; export SVG/PDF.
Read Choropleth story maps as 1826, “History,” and 1826. A bar with no unit is not those three.1826
Figures to keep
- Year of the chart
- 1826
- Axis figure
- 1826
- Chart
- Choropleth story maps
- How to read it
- History