Statistics for occurrence #1 of “United States” in entry iron-and-steel of Harper's Encyclopedia of United States History:

...gate of the preceding year. The nearest approach to the total of the United States in 1898 and 1899 was the output of Great Britain in 1880, which reached 18,026,049 long tons. The output of the United States in 1899 aggregated in value $34,999,077. The chief ore-producing States in their order and with their respective outputs were: Michigan, 9,146,157 long tons; Minnesota, 8,161,289 long tons; Alabama, ...
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

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