The 1912 Bangor Carnival was organized by the Bangor Chamber of Commerce and held June 17-22. The week of festivities included laying of cornerstones of the new Bangor High School and Bangor Public Library buildings, several parades, the first Bangor marathon, flights by aviator Harry Atwood, and the Ferari-Bostock circus. The Trades Procession took place on Tuesday, June 18, which was advertised as "Bangor Day." This parade featured local businesses and included nearly 150 floats and 600 horses. The Bangor Daily News and Bangor Daily Commercial reported that it was the largest parade in Bangor's history. Some floats exhibited machinery and merchandise. A committee of women awarded prizes to the best floats. Prize winners were the Eastern Manufacturing Co. for largest decorated float, Benson and Miller for best artistic float, and Adams Dry Goods Co. for best characteristic float.