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:
... they flapped as the wearer walks, the term was already doccumented as in use in the United Kingdom as early as 1912.
Writers and artists in the United States such as F. ...