Pittsburgh boasts more bridges, owing to its location at the confluence of theAllegheny,Ohio, andMonongahela, than any other city or region in the world.[1]
Steel City
Pittsburgh and the surrounding area was once one of the largest steel producers in the world, gaining it international renown as such. TheU.S. Steel Tower remains the headquarters for that company.
River City
For the three rivers that confine Pittsburgh and the vital role they played in establishing the city and its flourishing.[2][3]
The 'Burgh
Unlike many cities in America that end in burg (including the capital of the state,Harrisburg), Pittsburgh retains theh at the end of its name, making this quality recognizable as unique to the city.
Dirty 'Burgh
Pittsburgh and the surrounding area was once one of the largest producers of steel in the world. Due to the pollution caused by the steel industry, the haze was so dark that downtown streets were lined with bright streetlamps at ten in the morning.[4]
Boston writer James Parton described Pittsburgh as "hell with the lid off" in 1868. This was because of the smoke, smog, and fire that were prevalent during the city's steelmaking heyday.
412 is the telephone area code for much ofAllegheny County, though it covered much more geographically at the time the name was coined, prior to the introduction of724. Both 412 and 724 are now part of anoverlay complex in which the entire region served by those codes is also covered by878.
^O'Brien, Jim; Marty Wolfson (1980).Pittsburgh, the story of the city of champions: the '70s—a decade unmatched in the annals of sports. Wolfson Pub. Co.ISBN978-0-916114-07-7.