Linked from
The 25 pages that link to Algebraic number field, each with the reason it gives.
Dedekind domainRelated: Its ring of integers is a central source of Dedekind domains.
Helmut HasseRelated: Hasse studied number fields by examining their completions at different primes.
Hasse–Minkowski theoremRelated: It supplies the global field whose completions are tested.
Manin conjectureRelated: It supplies the field over which rational points and heights are defined.