Steel
This process, invented in the 1850s, revolutionized steel production by making it faster and cheaper.
the Bessemer process
This major railroad was completed in 1869, connecting the East and West of the United States.
Transcontinental Railroad
This building, completed in 1885, is often considered the first modern skyscraper.
Home Insurance Building
He founded the Carnegie Steel Company and became one of the wealthiest men in America.
Andrew Carnegie
Steel tracks replaced this material, improving safety and durability in railroad construction.
iron
Skyscrapers are symbols of this, reflecting the economic ambitions of urban centers.
economic power
This industry experienced growth due to the demand for steel in infrastructure projects like railroads and buildings.
the manufacturing industry
Railroads promoted this type of development, allowing regions to grow economically and socially.
regional development
The rise of skyscrapers allowed cities to accommodate more people, promoting this phenomenon.
urbanization
This U.S. city became a major center for steel production in the late 19th century, often called the "Steel City."
Pittsburgh
This term describes the financial support and investment needed for railroad expansion in the 19th century.
capital investment
This architectural technique, using steel frames, allowed for the construction of taller buildings.
steel framing
The steel industry contributed significantly to this type of large-scale construction, essential for both infrastructure and urban development.
industrial infrastructure
Railroads significantly reduced transportation time and costs, leading to the rise of this economic practice involving the mass production of crops.
large-scale agriculture
The development of skyscrapers changed urban landscapes and led to the rise of this economic sector focused on real estate and construction.
commercial real estate