Sam Walton, in full Samuel Moore Walton, (born March 29, 1918, Kingfisher, Oklahoma, U.S.—died April 5, 1992, Little Rock, Arkansas), American retail magnate who founded Walmart in 1962 and developed it, by 1990, into the largest retail sales chain in the United States.

By the early 1960s he and his brother, James, operated a regional chain of Ben Franklin stores, and, when that company’s executives rejected his concept for a new discount store chain to be based in small towns, Walton decided to set up such a chain on his own. He opened the first Walmart store, Wal-Mart Discount City, in Rogers, Arkansas, in 1962, offering a wide variety of merchandise at discount prices in a no-frills setting. (In 2018 the company’s name was changed to Walmart.)

By 1990 Wal-Mart Stores had passed Sears, Roebuck and Company to become the largest retailer in the United States. The next year the company began its international expansion with the opening of a store in Mexico. Growth continued, either through new stores or by the acquisition of established retailers, in countries such as Canada, China, Germany, and the United Kingdom. Walton kept prices and salaries low but nevertheless inspired company loyalty in employees, who retired with comfortable pensions as a result of his profit-sharing plan.

As the Meijer store chain grew, it caught the attention of Walton. He came to acknowledge that his one-stop-shopping center format was based on Meijer’s original innovative concept. Contrary to the prevailing practice of American discount store chains, Walton located stores in smaller towns, not larger cities. To be near consumers, the only option at the time was to open outlets in small towns. Walton’s model offered two advantages. First, existing competition was limited and secondly, if a store was large enough to control business in a town and its surrounding areas, other merchants would be discouraged from entering the market. 

To make his model work, he emphasized logistics, particularly locating stores within a day’s drive of Walmart’s regional warehouses, and distributing them through its own trucking service. Buying in volume and efficient delivery permitted sale of discounted name-brand merchandise. Thus, sustained growth—from 1977’s 190 stores to 1985’s 800—was achieved.

Given its scale and economic influence, Walmart is noted to significantly impact any region in which it establishes a store. These impacts, both positive and negative, have been dubbed the “Walmart Effect”.

According to en.wikipedia.org. Source of photos: internet