The Seven Bridges of Königsberg problem, solved by Leonhard Euler in 1736, is considered the founding problem of graph theory.
Notes on verification
Well corroborated by Wikipedia, Britannica, and academic sources; minor date nuance (1735 vs 1736) does not undermine the core claim. [cascade flags: aggregator_dropped_primary_exists | tier=unverified indep_score=0.5 clusters=1 claim_tier=notable] [harvest 2026-09-15: +4 source(s) on new hosts; tier unverified->silver indep=1.0 clusters=3] [kind-backfill 2026-09-15: kind=interpretive eligibility=medium]
Sources
- List of mathematics history topics (wikipedia)
- https://arxiv.org/pdf/cond-mat/0012185 (corroboration)
- https://www.britannica.com/science/Konigsberg-bridge-problem (corroboration)
- https://mathworld.wolfram.com/KoenigsbergBridgeProblem.html (corroboration)
- https://www.sciencedirect.com/topics/mathematics/konigsberg (corroboration)
- https://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts-and-maps/birth-graph-theory-leonhard-euler-and-konigsberg-bridge-problem (corroboration)