Today is brought to you by the letter “A” Abacus c.1940 An abacus (/ˈabəkəs/) is a calculating instrument that uses beads that slide along a series of wires/rods or grooves set in a frame to represent the decimal places. It is the ancestor of the modern digital calculator. This abacus belonged to the Havlecheck family. Donated by Fern Meeker. #powellwyominghistory #alphabet #letteroftheday #theletterA #museumcollections #abacus #calculator #math #calculate #counting | Homesteader Museum