How the Königsberg bridge problem changed mathematics - Dan Van der Vieren
Why the open web links it
Explains how the Königsberg bridge problem led to the development of graph theory and topology.
Linked by 8 independent sites, 2 of them widely read in the 2026-10 crawl of the open web, including wikipedia.org, ted.com, aims.edu, apsmo.edu.au, edu.gr.