Recurrence pattern: every year on November 29.

National Square Dancing Day, observed worldwide every November 29, celebrates the vibrant tradition of square dancing, which features various styles popular across the globe. The dance involves four couples forming a square, with roots tracing back to English folk dances such as the Morris dance and country dance, as well as elements from 18th-century French dances like cotillions and quadrilles. European settlers brought these dances to North America, where they evolved into distinct forms, including traditional square dance and modern western square dance. Traditional square dance encompasses styles that developed before the mid-20th century and is divided into regional styles, while modern western square dance emerged around the 1950s. The holiday encourages participation in activities such as hosting square dance parties, joining clubs, or watching square dance performances online. With 24 U.S. states designating square dancing as their official state dance since the 1970s, the day highlights the cultural significance of this communal activity.