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Angela Forsythe
Anna Startari
Andrei Lawry

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Angela Forsythe
Anna Startari
Andrei Lawry

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With the growing number of factories and mills in the early 1900s, pollution was taking over the sky above.

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In 1920 Pittsburgh aired the first US commercial radio broadcast on KDKA

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In 1920 Pittsburgh aired the first US commercial radio broadcast on KDKA

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Other than Pittsburgh, other major steel mills were located in Homestead, Rankin, Braddock, Duquesne, McKeesport, and Clairton.

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John D. Rockefeller political cartoon, 1899

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John D. Rockefeller political cartoon, 1899

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Pittsburgh played in the first World Series game in 1903

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Pittsburgh played in the first World Series game in 1903

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Due to the growing steel industry, dangerous working conditions and low wages resulted for steel mill workers.

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Between 1870 and 1920, the majority of immigrants in Pittsburgh were from Italy, the Balkans, the Austro-Hungarian Empire, and the Russian Empire.

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In 1905 Pittsburgh opened the first motion picture movie theater that was called the "Nickelodeon"

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In 1905 Pittsburgh opened the first motion picture movie theater that was called the "Nickelodeon"

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By 1911, the value of factory products was more than $211 million.

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The first automobile gas station opened in Pittsburgh in 1913

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The first automobile gas station opened in Pittsburgh in 1913

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In 1910, 26% of Pittsburgh's population was foreign born.

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Pavilion at Children's Hospital of Pittsburgh, 1912

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Pavilion at Children's Hospital of Pittsburgh, 1912