Chick-fil-A is an American fast food restaurant chain headquartered in the Atlanta suburb of College Park, Georgia, specializing in chicken sandwiches. Founded in 1946, it has been associated with the Southern United States, where it has become a cultural icon. As of November 2012, Chick-fil-A has 1,679 restaurants in 38 U.S. states and the District of Columbia, and is focusing future growth in the American Midwest and Southern California. The corporation's culture is heavily influenced by its founder's evangelical Christian beliefs; notably his opposition to same-sex marriage and the high value he places on observing the Christian Sabbath. Unlike most fast food restaurants and retail chain stores, all Chick-fil-A restaurants are closed for business on Sunday.