Visualization exploration on activity of the militants whose biography appears in the first period of the Maitron (1789-1864)

One dot, one militant

Maitron's cartographic visualization of worker's activism (1789-1864)

I assume this refers to the people discussed in https://observablehq.com/@rysebaert/maitrons-cartographic-visualization-of-workers-activism?

Yes it is. It has been extracted from the main document for performance issues...