Baltimore and Ohio Railroad
E26763
The Baltimore and Ohio Railroad was one of the earliest and most influential American railroads, playing a key role in the development of U.S. transportation and commerce in the 19th and early 20th centuries.
All labels observed (14)
How this entity was disambiguated
This entity first appeared as the object of triple T164765 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
Target entity: Baltimore and Ohio Railroad Context triple: [Pennsylvania Railroad, majorCompetitor, Baltimore and Ohio Railroad]
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A.
Philadelphia, Wilmington and Baltimore Railroad
The Philadelphia, Wilmington and Baltimore Railroad was a 19th-century rail line that formed a key segment of the main corridor linking the northeastern United States, particularly connecting Philadelphia with points south.
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B.
Pennsylvania Railroad Company
The Pennsylvania Railroad Company was one of the largest and most influential American railroads of the 19th and early 20th centuries, playing a central role in the industrial development of the United States.
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C.
New York Central Railroad
New York Central Railroad was one of the largest and most influential American railroads, known for its extensive network in the northeastern United States and iconic passenger trains like the 20th Century Limited.
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D.
Boston and Maine Railroad
The Boston and Maine Railroad was a major New England railroad that operated extensive passenger and freight services across Massachusetts, New Hampshire, Maine, and surrounding states from the 19th through the mid-20th century.
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E.
Pittsburgh, Cincinnati, Chicago and St. Louis Railroad
The Pittsburgh, Cincinnati, Chicago and St. Louis Railroad was a major Midwestern and Mid-Atlantic rail system that formed a key part of the Pennsylvania Railroad’s network, linking important industrial cities across the region.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Baltimore and Ohio Railroad Target entity description: The Baltimore and Ohio Railroad was one of the earliest and most influential American railroads, playing a key role in the development of U.S. transportation and commerce in the 19th and early 20th centuries.
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A.
Philadelphia, Wilmington and Baltimore Railroad
The Philadelphia, Wilmington and Baltimore Railroad was a 19th-century rail line that formed a key segment of the main corridor linking the northeastern United States, particularly connecting Philadelphia with points south.
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B.
Pennsylvania Railroad Company
The Pennsylvania Railroad Company was one of the largest and most influential American railroads of the 19th and early 20th centuries, playing a central role in the industrial development of the United States.
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C.
New York Central Railroad
New York Central Railroad was one of the largest and most influential American railroads, known for its extensive network in the northeastern United States and iconic passenger trains like the 20th Century Limited.
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D.
Boston and Maine Railroad
The Boston and Maine Railroad was a major New England railroad that operated extensive passenger and freight services across Massachusetts, New Hampshire, Maine, and surrounding states from the 19th through the mid-20th century.
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E.
Pittsburgh, Cincinnati, Chicago and St. Louis Railroad
The Pittsburgh, Cincinnati, Chicago and St. Louis Railroad was a major Midwestern and Mid-Atlantic rail system that formed a key part of the Pennsylvania Railroad’s network, linking important industrial cities across the region.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
common carrier railroad
ⓘ
railroad company ⓘ |
| appearsIn | Monopoly board game as a railroad property ⓘ |
| becamePartOf | Chessie System ⓘ |
| builtInfrastructure | B&O Railroad Museum complex in Baltimore (original shops and facilities) ⓘ |
| ceasedIndependentOperations | 20th century ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| earlyRoute | Baltimore to Ellicott's Mills, Maryland ⓘ |
| extendedTo |
Cumberland, Maryland
ⓘ
Wheeling, Virginia (now West Virginia) ⓘ
linked to:
Wheeling, West Virginia
|
| founders |
Baltimore merchants
ⓘ
City of Baltimore ⓘ
linked to:
Baltimore
State of Maryland ⓘ
linked to:
Maryland
|
| foundingDate | February 28, 1827 ⓘ |
| gauge | standard gauge ⓘ |
| hasHeritageSite | B&O Railroad Museum ⓘ |
| headquartersLocation |
Baltimore, Maryland
ⓘ
linked to:
Baltimore
|
| historicalLocomotive | Tom Thumb ⓘ |
| inception | 1827 ⓘ |
| industry | rail transport ⓘ |
| introducedService |
Capitol Limited passenger train
ⓘ
linked to:
Amtrak Capitol Limited
National Limited passenger train ⓘ Royal Blue passenger train ⓘ |
| laterUsedTechnology | diesel locomotives ⓘ |
| mergedInto | Chesapeake and Ohio Railway ⓘ |
| nickname |
B&O
ⓘ
linked to:
B&O Warehouse
|
| notableFor |
being one of the first common carrier railroads in the United States
ⓘ
being the first U.S. railroad to offer scheduled freight and passenger service ⓘ pioneering early American railroad technology ⓘ |
| openedFirstSection | 1830 ⓘ |
| operated |
commuter services in the Baltimore–Washington area
ⓘ
freight trains ⓘ passenger trains ⓘ |
| peakEra |
early 20th century
ⓘ
late 19th century ⓘ |
| playedRoleIn |
American Civil War logistics
ⓘ
development of U.S. transportation infrastructure ⓘ expansion of American commerce in the 19th century ⓘ |
| purpose | to provide rail transportation from Baltimore to the Ohio River ⓘ |
| reachedOhioRiver | 1852 ⓘ |
| servedCity |
Baltimore, Maryland
ⓘ
linked to:
Baltimore
Chicago, Illinois ⓘ
linked to:
Chicago, Illinois, United States
New York City, New York ⓘ
linked to:
New York City
Philadelphia, Pennsylvania ⓘ
linked to:
Philadelphia
Washington, D.C. ⓘ |
| servedRegion |
Mid-Atlantic United States
ⓘ
linked to:
Mid-Atlantic states
Midwestern United States ⓘ |
| successor | CSX Transportation ⓘ |
| TomThumbNotableFor | first American-built steam locomotive to run on a common carrier railroad ⓘ |
| trackGauge | 4 ft 8 1⁄2 in ⓘ |
| usedTechnology | steam locomotives ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Subject: Baltimore and Ohio Railroad Description of subject: The Baltimore and Ohio Railroad was one of the earliest and most influential American railroads, playing a key role in the development of U.S. transportation and commerce in the 19th and early 20th centuries.
Referenced by (84)
Full triples — surface form annotated when it differs from this entity's canonical label.