''Time lapse map shows how Walmart conquered the U.S. over the course of 50 years''

From Daily Mail

''Charting the impressive growth of Walmart across the United States, a GIF map shows how the family-owned firm progressed from one store in Rogers, Arkansas, to 3,500 stores in the United States alone.

Founded by Sam Walton in 1962, the firm has become the world's largest retailer and it the world's biggest private employer with more than two million members of staff.

Headquartered in Bentonville, Arkansas, the firm generates 51 percent of its $258 billion sales from its grocery business and the Walton family who control 48 percent of the firm are worth a combined $102.7billion.''

see map here