Australia is one of the more diverse countries in the world. It’s estimated that seven million people have immigrated to the country since 1945 and that one in two Australians have a non-Australian parent. Those wanting to be a permanent part of the country attend a ceremony to celebrate their citizenship.The Australian Citizenship Ceremony has long been a part of becoming an Australian citizen. The formal event is held by officials to welcome the newcomers. In 1999, on the ceremony’s 50th anniversary, a new addition to the ceremony was introduced, the Australian citizenship affirmation, a pledge that publicly declares commitment to the country. This one-time celebration became a permanent feature at citizens’ request.Australian Citizenship Day was created 20 years ago on September 17, 2001. The day itself is a product of proud Australians wanting to honor their country. Previously, the only ones to participate in affirmation ceremonies were those newly joining the country. Now all Australians can participate and hold their affirmation ceremony, even if Australia is the only home they’ve ever known. The affirmation ceremonies are held on formal occasions and national holidays, such as Australia Day, Wattle Day, Constitution Day, and, of course, Australian Citizenship Day.