National Nevada Day is observed in Nevada on October 31 to commemorate the state's admission to the Union as the 36th state in 1864. This legal holiday, formerly known as Nevada Admission Day, was first celebrated in the 1870s and was formally established as a state holiday in 1933. Although the holiday is celebrated on October 31, Nevada Day events typically occur on the last Friday of October, with parades, carnivals, and festivities in cities such as Carson City and Las Vegas. One notable tradition is the annual treasure hunt sponsored by the Nevada Appeal, where participants search for a medallion based on daily clues related to Nevada's history. Additionally, an alternative celebration called National Nevada Day takes place on March 29, created by National Day Calendar as part of its project honoring each state in the order of their admission.