The Bureau of Labor Statistics (BLS) is the unit of the United States Department of Labor which is the principal fact-finding agency for the U.S. government in the field of labor economics and statistics.
Indices and statistics produced by the BLS include:
... flapper style made them look young and boyish. The short "bob" haircut became popular, only to be replaced later by the shorter "Eaton" or "shingle" which slicked the ...