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Pittsburgh is a city in the Commonwealth of Pennsylvania in the United States, and is the county seat of Allegheny County. As of 2017, a population of 305,704 lives within the city limits, making it the 63rd-largest city in the U.S. The metropolitan population of 2,353,045 is the largest in both the Ohio Valley and Appalachia, the second-largest in Pennsylvania (behind Philadelphia), and the 26th-largest in the U.S. Located at the confluence of the Allegheny, Monongahela, and Ohio rivers, Pittsburgh is known both as "the Steel City" for its more than 300 steel-related businesses and as the "City of Bridges" for its 446 bridges. The city features 30 skyscrapers, two inclined railways, a pre-revolutionary fortification and the Point State Park at the confluence of the rivers. The city developed as a vital link of the Atlantic coast and Midwest, as the mineral-rich Allegheny Mountains made the area coveted by the French and British empires, Virginians, Whiskey Rebels, and Civil War raiders. Aside from steel, Pittsburgh has led in manufacturing of aluminum, glass, shipbuilding, petroleum, foods, sports, transportation, computing, autos, and electronics. For part of the 20th century, Pittsburgh was behind only New York and Chicago in corporate headquarters employment; it had the most U.S. stockholders per capita. America's 1980s deindustrialization laid off area blue-collar workers and thousands of downtown white-collar workers when the longtime Pittsburgh-based world headquarters moved out. This heritage left the area with renowned museums, medical centers, parks, research centers, and a diverse cultural district.

INTO JAPANESE

ピッツバーグは、アメリカ合衆国ペンシルベニア州の州都で、アレゲニー郡の郡庁所在地です。 2017年の時点で、305,704人の人口が米国内で63番目に大きい都市となっており、オハイオ渓谷とアパラチアの両方で最大の人口である。

BACK INTO ENGLISH

Pittsburgh is the capital city of Pennsylvania, the United States of America and is the county seat of Allegheny County. As of 2017, the population of 305,704 people is the 63 th largest city in the U.S. It is the largest population in both Ohio Valley and Appalachia.

INTO JAPANESE

ピッツバーグは、アメリカ合衆国のペンシルベニア州の首都で、アレゲニー郡の郡庁所在地です。 2017年の時点で、305,704人の人口は、米国で63番目に大きい都市です。

BACK INTO ENGLISH

Pittsburgh is the capital city of the state of Pennsylvania in the United States and is the county seat of Allegheny County. As of 2017, the population of 305,704 people is the 63 th largest city in the United States.

INTO JAPANESE

ピッツバーグは、アメリカ合衆国のペンシルベニア州の州都で、アレゲニー郡の郡庁所在地です。 2017年の時点で、305,704人の人口はアメリカ合衆国の63番目に大きい都市です。

BACK INTO ENGLISH

Pittsburgh is the capital city of Pennsylvania state in the United States and is the county seat of Allegheny County. As of 2017, the population of 305,704 people is the 63 th largest city in the United States.

INTO JAPANESE

ピッツバーグは、アメリカ合衆国のペンシルベニア州の州都で、アレゲニー郡の郡庁所在地です。 2017年の時点で、305,704人の人口はアメリカ合衆国の63番目に大きい都市です。

BACK INTO ENGLISH

Pittsburgh is the capital city of Pennsylvania state in the United States and is the county seat of Allegheny County. As of 2017, the population of 305,704 people is the 63 th largest city in the United States.