A network graph of 19th-century economists, clustered by intellectual community and positioned vertically by birth year, displays citation relationships between scholars like Wilhelm Roscher and Leopold von Ranke. Nodes scale by citation count and change color by cluster, while hovering reveals a tooltip with each economist’s name and publication details. Built with d3.v4, the visualization uses `d3.forceSimulation` with link, charge, and center forces, plus custom drag and tick handlers to fix y-coordinates to the timeline. A left axis marks the date range, and a JSON data source supplies node attributes and links.