The 1875 COBOL Date Myth: Efficient Data Structures, Not a Language Flaw

The widespread rumor that COBOL systems default to May 20, 1875, for missing dates is false. This article reveals that the origin lies in the extreme optimization of data storage in early systems. To save storage space, programmers cleverly used data structures, taking 1875 as the base year and encoding dates into fewer characters. This approach was efficient and reasonable in the resource-constrained environment of the time, not a flaw of COBOL but a clever use of data structures by programmers.