Statistics for occurrence #1 of “United States” in entry metric-system of Harper's Encyclopedia of United States History:

...1821 By legislation of July 4, 1837, the use of the system in France is enforced, to take effectJan. 1, 1840 International Decimal Association formed1855 Canada adopts the decimal currency used in United States Jan. 1, 1858 Metric weight of 5 grammes (77.16 grains) and diameter of 2 centimetres given to the 5-cent copper nickel piece in the United States by act of CongressMay 16, 1866 Use in the United Sta...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
United States (United States) 100,886 16,340 0 0 0 user votes
United States (New Mexico, United States) 6 0 0 0 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.