Linked from
The 14 pages that link to Wien's displacement law, each with the reason it gives.
Thermal radiationRelated: It predicts how the emission peak shifts as matter heats or cools.
Black-body radiationRelated: It tracks how the spectrum's peak shifts as the emitter heats.
Planck's lawBroader topic: It follows from Planck's spectrum and locates its wavelength peak.
Wilhelm WienBroader topic: This is Wien’s best-known result and the basis of his 1911 Nobel Prize.
Black bodyRelated: It shows how heating shifts the black body's spectrum toward shorter wavelengths.