Blue Monday (date) Blue Monday (date) Blue Monday is a name given to a day in January (typically the third Monday of the month) claimed to be the most depressing day of the year. The concept was first publicised as part of a 2005 press release from holiday company Sky Travel, which claimed to have calculated the date using an equation. It takes into account weather conditions and thus only applies to the Northern Hemisphere. The idea is considered pseudoscience, with its formula derided by scientists as nonsensical. This date was published in a press release under the name of Cliff Arnall, at
Native American Day as Native American Day in South Dakota. On Oct 3, 2017, The Proclamation of Native American day was announced by the Mayor of Sioux Falls, South Dakota. Accepting the Proclamation would be the Lakota-Dakota-Nakota representatives of Sioux Falls. South Dakota and Vermont, which celebrates Indigenous Peoples' Day, are the only states to practice non-observance of the federal holiday of Columbus Day. In 1994 the state General Assembly established the "fourth Monday in September of each year" to be especially observed in Tennessee as "American Indian Day" (TCA 15-2-106), "to recognize the contributions of American Indians with suitable ceremony and fellowship