The 150-year-old history of an iconic organization is the subject of the Aug. 11 "History on Second Tuesday" event sponsored by the Historical Society of Marshall County. The presentation will be held in the board room at the Y, 108 Washington St., Marshalltown. The program is free-of-charge and open to the public. "We are pleased to partner with the Y for this exciting program," said HSMC President Michelle Roseburrough, of Marshalltown. "The Y has a distinguished history and has been at the forefront of many community initiatives."