The document discusses the history and operations of Walmart, beginning with the origins of discount retailing in the US in the 1950s. It notes Walmart and Kmart's founding in the 1960s and their growth through innovations in the 1980s and 1990s with larger supercenter formats. The summary provides details on Walmart's operations as of 2003, including over 4,600 stores across the US, supply chain and distribution networks, merchandising and pricing strategies, and management practices emphasizing responsibility, control, commitment and strategic analysis that contributed to its success.