A.T. Stewart & Co. was a prominent American retail company founded by Alexander Turney Stewart in the mid-19th century. Established in 1848, it became known for its innovative approach to department store retailing, offering a wide range of goods under one roof. The company was particularly famous for its large store on Broadway in New York City, which was one of the first to use a fixed-price system instead of haggling. The store's success contributed to the rise of modern retail practices, including advertising and customer service. A.T. Stewart & Co. played a significant role in shaping the shopping experience in the United States until its decline in the late 19th century, ultimately closing in 1882.