great-grandfather Adam Armstrong from the Scottish Borders. His son Adam II and grandson Adam Abraham (b. Cumberland, England) left for the colonies in the 1730s settling in Pennsylvania. Other Scottish American moonwalkers were the fourth, Alan Bean, the fifth, Alan Shepard, the seventh, David Scott (also the first to drive on the moon), and the eighth, James Irwin. Computing Scottish Americans have also been leaders in computing and information technology. Scottish Americans Howard Aiken and Grace Murray Hopper created the first automatic sequence computer in 1939. Hopper was also the co-inventor of the computer language COBOL. Ross Perot, another Scottish American entrepreneur, made his fortune from Electronic Data Systems, an outsourcing company he established in 1962. Software giant Microsoft was co-founded in 1975 by Bill Gates, who owed his start in part to his mother, the Scottish American businesswoman Mary Maxwell Gates, who helped her son to get his first software contract with IBM. Glasgow-born Microsoft employee Richard Tait helped develop the Encarta encyclopedia and co-created the popular board game Cranium. Cuisine Scottish Americans have helped to define the modern American diet by introducing many distinctive foods. Philip Danforth Armour founded Armour Meats in 1867, revolutionizing the American meatpacking industry and becoming famous for hot dogs. Campbell Soups was founded in 1869 by Joseph A. Campbell and rapidly grew into a major manufacturer of canned soups. W. K. Kellogg transformed American eating habits from 1906 by popularizing breakfast cereal. Glen Bell, founder of Taco Bell in 1962, introduced Tex-Mex food to a mainstream audience. Marketing executive Arch West, born to Scottish emigrant parents, developed Doritos. Community activities Some of the following aspects of Scottish culture can still be found in some parts of the United States. Bagpiping and pipe bands Burns Supper Ceilidhs Hogmanay, the Scottish New Year St. Andrew's Day festivities Tartan - some places in the U.S. have their own tartan, and Scottish dress is worn by some Americans to celebrate their ancestral heritage. Tartan Day National Tartan Day, held each year on April 6 in the United States and Canada, celebrates the historical links between Scotland and North America and the contributions Scottish Americans and Canadians have made to U.S. and Canadian democracy, industry and society. The date of April 6 was chosen as "the anniversary of the Declaration of Arbroath in 1320—the inspirational document, according to U.S. Senate Resolution 155, 1999, upon which the American Declaration