Started by Sam Walton in 1962 in Rogers, Arkansas, Walmart now has over 8,500 stores in 15 countries. In the animation above, one can see how the store opened in 1962 has exploded to 3,898 Walmarts as of May 2012. Animation by Excel Hero, using Excel formulas.

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Over 200 years of American geographic history compressed into a 20 second GIF.

With a sweeping length of over 1,000 miles, the Snake River is as vast as it is stunning.