What specialized industry grew and developed in Chicago?

Chicago became a hub for the meatpacking industry in the late 19th and early 20th centuries, driven by its strategic location and extensive rail network. The city's stockyards, particularly the Union Stock Yards, facilitated the processing and distribution of meat, making Chicago a critical center for the national meat supply. This industry not only spurred economic growth but also attracted immigrants seeking jobs, shaping the city’s demographic landscape. Additionally, the rise of the meatpacking industry contributed to advancements in food preservation and distribution techniques.