1885: The first true skyscraper, the Home Insurance Building, is completed in Chicago.
1890s: The construction of skyscrapers spreads to other American cities such as New York, Philadelphia, and St. Louis.
1920s: The construction of skyscrapers reaches its peak in the United States, with iconic buildings such as the Empire State Building and the Chrysler Building being completed.
1930s-1950s: The construction of skyscrapers slows down due to the Great Depression and World War II.
1960s: The construction of the World Trade Center in New York City signals a new era of skyscraper construction.
1970s-1990s: Skyscraper construction booms in Asia, particularly in Japan and Hong Kong.
2000s-present: Skyscraper construction continues to expand globally, with buildings such as the Burj Khalifa in Dubai and the Shanghai Tower in China becoming some of the tallest in the world. Sustainability concerns also drive innovation in skyscraper design and construction.