Walgreen Co. (NYSE: WAG; NASDAQ: WAG), commonly abbreviated as WAGS, doing business as Walgreens, is the largest drug retailing chain in the United States of America. As of January 31, 2012, the company operates 8,300 locations across all 50 states, the District of Columbia and Puerto Rico. Founded in Chicago, Illinois in 1901, it has since expanded throughout the United States. Walgreens is currently headquartered in the nearby suburb of Deerfield, Illinois. Walgreens provides access to consumer goods and services and pharmacy, health and wellness services in America through its retail drugstores, Walgreens Health Services division and Walgreens Health and Wellness division. Walgreens has 7,733 drugstores as of June 30, 2011. The Walgreens chain began in 1901, with a drug store on the corner of Bowen Ave and Cottage Grove, Chicago, Illinois, United States owned by Galesburg native Charles R. Walgreen, Sr. By 1913, there were five Walgreen drugstores.
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