Linked from
The 17 pages that link to Riemann mapping theorem, each with the reason it gives.
Bernhard RiemannBroader topic: It exemplifies the reach of Riemann’s theory of conformal maps.
Conformal mapRelated: It guarantees a disk model for a broad class of planar domains.
Schwarz lemmaRelated: Its normalized maps use the lemma to establish uniqueness.
Circle packingRelated: Circle-packing approximations give discrete routes to conformal maps.