Tidy variant of a radial tree visualization showing links of type "aggravates" for the World Problems entry Ethnic conflict.
The source entry is positioned in the middle and the entries connected to it in several levels show in concentric circles around. As the circles grow in circumference, they naturally make place for more link labels. In principle can any level be set and drawn. However, in the case of the Encyclopedia the number of links often increases too rapidly to generate a readable or even just a visually pleasing image anywhere above 3 levels.
https://www.askthefox.org/visualizations/all/radialtreetidy
All labels are linked to their entries.
Radial tree is yet another elegant and useful specimen of the open-source visualization framework D3.js.