12" Wooden Ruler made in U.S.A. of American-grown basswood. This ruler features women who made an important name for themselves in various fields of technology, but most particularly in computer science. When working with Charles Babbage on his Analytical Engine (considered to be the first computer), Ada Lovelace (1815-1852), daughter of the poet Lord Byron, kept elaborate notes that included what many consider the first computer program. Many early computer scientists worked at NASA, America’s space agency, including African-Americans Katherine Johnson (1918-2020) and Mary Jackson (1921-2005). The dates listed are birth and death years. We also list one detail about each of the women on the list, usually the important accomplishment that they are best known for. The “head” image is that of Annie Easley (1933-2011), developer of computer code that analyzed, among many other things, flight propulsion, rocketry, and alternative energy projects including solar and wind.