This number is a prime.
The first year in which the number of member states in the United Nations was prime (namely fifty-nine). [Post]
The year in which Erdős and Selberg independently gave several "elementary proofs" (i.e., based on number-theoretic methods free of complex analysis) of the celebrated Prime Number Theorem. [Beedassy]
Xerox Corporation's Model A xerographic copier was released in 1949. [Merickel]
The Lee County Tobacco Festival was established in 1949. It is the longest running tobacco festival in the state of Virginia. [Marshalene]
1949 and its automorphic 19999999994444999999999 are primes. [Rivera]