Pittsburgh Steel Mills and Heavy Industry (1875–1920)

1. Edgar Thomson Works makes first steel heat

   Aug 22, 1875Labels: Edgar Thomson, Bessemer converter, Pennsylvania Railroad

   • Edgar Thomson
   • Britannica

2. Amalgamated Association union founded in Pittsburgh

   Aug 4, 1876Labels: Amalgamated Association, Skilled workers

   • AA Union
   • Homestead BHF

3. Railroad strike unrest erupts in Pittsburgh

   Jul 19, 1877Labels: Railroads, Pittsburgh

   • Britannica
   • Wikipedia

4. Carnegie buys Homestead Steel Works

   Jan 1, 1883Labels: Andrew Carnegie, Homestead Steel

   • Homestead Works
   • Britannica

5. Open-hearth steelmaking added at Homestead

   Jan 1, 1886Labels: Open-hearth shop, Homestead Steel

   • Homestead BHF
   • Homestead Works

6. Carnegie Steel Company consolidated and launched

   Jan 1, 1889Labels: Carnegie Steel, Vertical integration

   • Britannica

7. Homestead Strike pits workers against Carnegie Steel

   Jul 1, 1892Labels: Homestead Strike, Pinkerton agents, Carnegie Steel

   • AFL CIO
   • Wikipedia

8. Carnegie Steel headquarters opens in Pittsburgh

   Jan 1, 1895Labels: Carnegie Building, Carnegie Steel

   • Carnegie Bldg
   • Britannica

9. U.S. Steel formed, absorbing Carnegie’s empire

   Jan 1, 1901Labels: U S, J P

   • Britannica
   • Britannica

10. Jones & Laughlin begins Aliquippa plant expansion

    Jan 1, 1905Labels: Jones &, Aliquippa plant

    • Aliquippa PA
    • J L Steel

11. Carrie Furnaces built to expand Homestead ironmaking

    Jan 1, 1907Labels: Carrie Furnaces, Homestead Works

    • Steel Museum
    • Carrie Furnace

12. Pittsburgh Survey launched to document industrial conditions

    May 1, 1907Labels: Pittsburgh Survey, Russell Sage

    • Russell Sage
    • Pgh Survey

13. Great Steel Strike tests U.S. Steel’s labor system

    Sep 22, 1919Labels: Great Steel, U S

    • 1919 Strike