19091940

19091940 is an eight-digit date string typically interpreted as 19 September 1940 in day-month-year notation. In ISO 8601 it corresponds to 1940-09-19. The same sequence may appear in archives, filenames, catalog numbers, and military records.

The date falls during the early years of World War II, a period characterized by the Battle of Britain and the Blitz, with sustained aerial bombardment of the United Kingdom by the German Luftwaffe and allied actions across Europe. While there is no single widely recognized event tied specifically to 19 September 1940, the day sits within a window of intense military activity and strategic developments of that era.

In digital and archival practice, eight-digit dates like 19091940 help with sorting and metadata but can introduce ambiguity when used across regions that order day and month differently. ISO formats such as 1940-09-19 are preferred for unambiguous representation. The string also serves as a convenient compact label in file naming and cataloging, provided that the intended date interpretation is clearly documented to avoid misreading as a different calendar format.