March 29 is Iowa Flag Day. A Knoxville woman, Dixie Gebhardt, designed the flag and it was adopted as the official flag of Iowa in 1916. Knoxville Chamber Director Larissa Van Donselaar says there will be a celebration on March 29, at the Dixie Gebhardt House, with activities at the Knoxville Public Library as well. Van Donselaar says among the activities will be a flag raising, a cake walk and a celebrity pie contest. Parts of Montgomery and Second streets will be closed for the event, for part of the day as well.