is an event which the participants attend in costume wearing a mask.
A new resurgence of masquerade balls began in the late 1990s in North America. They still take place today, though in modern times the party atmosphere is emphasized and the formal dancing usually less prominent. Less formal "costume parties" may be a descendant of this tradition. The revival may be linked to the development of live action role playing during the late 1970s, which in turn arose from tabletop fantasy gaming.