January 10, 2013. Retrieved October 12, 2015.In December 2015 The Belfast, Maine City Council approved a resolution to replace Columbus Day with Indigenous Peoples Day, making it the first city east of the Mississippi to take this historic step. It was first celebrated in October 2016 with a weekend of events planned and produced in full cooperation with our local Wabanaki communities, Penobscot, Passamaquoddy, Maliseet, and Mi'kmaq. ↑ "Efforts Ongoing to Recognize Indigenous Peoples Day as a federal holiday".