State Inauguration Day, also known as Statehood Day, is observed in Nagaland, India, every December 1. This regional holiday commemorates the day in 1963 when Nagaland became the 16th state of India. The celebration marks the culmination of the Naga people's long struggle for autonomy, which began during British colonial rule when they sought self-determination. Initially a part of Assam, Nagaland was established as a union territory in 1957 before being granted statehood. The day is significant for recognizing the cultural heritage of the Naga people, whose name translates to "the land of the Nagas." Events and activities typically include cultural programs and ceremonies that honor the state's history and the Naga identity.