By the Decade: A 20th-Century Timeline

History Facts & Stories on Instagram: "In the early twentieth century New York experienced a period of rapid urban growth as the city competed to establish itself as a modern global center of commerce and innovation. During this time architects and developers pushed buildings higher and higher in an effort to maximize limited land and demonstrate technological progress. Most construction work was performed by crews made up largely of recent immigrants and members of Indigenous and First Nations

23 Greatest Inventions of the 20th Century

What Are the Most Important Inventions of the 20th Century

Inventions 1900 to 1990 - History Learning Site Inventions 1900 to 1990