A costume party (American English) or fancy dress party (other varieties of English) is a type of party, common in contemporary Western culture, in which many of the guests are dressed in costume, usually depicting a fictional or stock character, or historical figure. Such parties are popular in the United States, United Kingdom, Canada, Australia, Ireland and New Zealand, especially during Halloween. By country Australia Australian fancy dress parties typically follow the style of the United States, and Halloween costume parties have been common since the early 1990s, even though Halloween has not historically been a celebrated event in Australia. Typical events for Australians that involve dressing up are the Sydney Gay and Lesbian Mardi Gras, the staff Christmas party and cricket matches. One of the oldest examples of fancy dress being worn in Australia is on display at the Western Australia Museum. It was a child's fancy dress costume worn by Rita Lloyd, aged nine, to the ‘Lord Mayor’s Juvenile Fancy Dress Ball’ at Mansion House in Perth on 8 January 1909. Iraq It is a tradition to have a costume party at a university graduation. United Kingdom Nineteenth century The origins of fancy dress parties in the United Kingdom can in some respects be traced to masked balls of the 18th century period. In the period to 1850, fancy dress balls were a typical part of the social life of music festivals. Common costumes of the period were specific historical characters, generic historical or regional clothing, abstract concepts (such as "winter", "starlight" or "night"), and objects (such as "champagne bottle" or "aquarium"). Popular characters included Marie Antoinette and Elizabeth I for women and Napoleon and Robin Hood for men. Twentieth century Notable amongst early events in the 20th century was the Chelsea Arts Club ball. Such events were often elaborate affairs and for the most part confined to those with considerable means. Amongst the general population, costume parties also occurred with increasing frequency from the late 1940s onward; for the most part the costumes were simple affairs until the mid-1970s. Prior to the late 1990s, most costumes were either hired or constructed at home. Although 'accessory' items had been available for some time, retail purchased costumes are, in respect of the U.K., largely since in the late 1990s. Many materials and costumes being imported from the Far East (with cost savings in labour and bulk orders) had increased