Walmart is an American multinational retail corporation that operates hypermarkets, discount department stores, and grocery stores. It was founded in 1962 in Arkansas and has grown to operate over 11,700 stores in 28 countries. Walmart pioneered supply chain management practices like a hub and spoke distribution system and cross-docking that helped reduce costs and drive its strategy of offering everyday low prices. The company's investments in IT systems and RFID technology further improved inventory management and logistics efficiency.