Bethlehem Steel was an American steel company founded in 1904 in Bethlehem, Pennsylvania. It became one of the largest steel producers in the United States, playing a crucial role in the industrial growth of the nation. The company was known for manufacturing steel products used in construction, shipbuilding, and railroads, contributing significantly to major projects like the Golden Gate Bridge and Empire State Building. At its peak in the mid-20th century, Bethlehem Steel employed thousands of workers and was a key player in the global steel market. However, the company faced challenges due to foreign competition and changes in the industry, leading to its decline and eventual bankruptcy in 2001.