Statistics for occurrence #1 of “Centre county” in entry united-states-of-america-pennsylvania of Harper's Encyclopedia of United States History:
...ron begun In Philadelphia......1852
Railroad track torn up at Harbor Creek, near Erie, by the opposition to the railroad......Dec. 9, 1853
Pennsylvania State Agricultural College organized in Centre county . April 13, 1854
Zinc works at Bethlehem go into operation......Oct. 12, 1854
Entire traffic-line of State improvements from Philadelphia to Pittsburg, completed by the State in 1831, sold to ...
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| Entity | Corpus | Doc | Corpus | Doc | |||
| † | Centre County (Pennsylvania, United States) | 9 | 2 | 1 | 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.