Pittsburgh's steel industry

GPTKB entity

Predicate	Object
gptkbp:instanceOf	gptkb:industry
gptkbp:contributedTo	U.S. industrialization
gptkbp:declinedAfter	1970s 1980s environmental regulations technological change foreign competition
gptkbp:environmentalImpact	gptkb:air_pollution river pollution
gptkbp:exportedTo	gptkb:United_States international markets
gptkbp:infrastructureBuilt	bridges railroads skyscrapers
gptkbp:laborMovement	gptkb:Homestead_Strike unionization efforts
gptkbp:legacy	gptkb:cultural_studies Pittsburgh Steelers (NFL team name origin) Steel City nickname
gptkbp:location	gptkb:Pittsburgh
gptkbp:museum	gptkb:Rivers_of_Steel_National_Heritage_Area gptkb:Carnegie_Science_Center
gptkbp:notableCompany	gptkb:Carnegie_Steel_Company gptkb:Jones_and_Laughlin_Steel_Company gptkb:U.S._Steel
gptkbp:notableFigure	gptkb:Andrew_Carnegie gptkb:Henry_Clay_Frick
gptkbp:notableFor	steel production
gptkbp:populationPeak	early 20th century late 19th century
gptkbp:bfsParent	gptkb:Steel_Curtain_defense
gptkbp:bfsLayer	7
https://www.w3.org/2000/01/rdf-schema#label	Pittsburgh's steel industry