Victoria Square, also known as Tarntanyangga (formerly Tarndanyangga) (), is the central square of five public squares in the Adelaide city centre, South Australia. It is one of six squares designed by the founder of Adelaide, Colonel William Light, who was Surveyor-General at the time, in his 1837 plan of the City of Adelaide which spanned the River Torrens Valley, comprising the city centre (South Adelaide) and North Adelaide. The square was named on 23 May 1837 by the Street Naming Committee after Princess Victoria, then heir presumptive of the British throne. In 2003, it was assigned a second name, Tarndanyangga (later amended to Tarntanyangga), in the Kaurna language of the original inhabitants, as part of the Adelaide City Council's dual naming initiative. The square has been upgraded and modified several times through its lifetime. It has become a tradition that during the Christmas period a tall Christmas tree is erected in the northern part of the square. Dual naming and significance The square was first named "Victoria Square" on 23 May 1837 by the Street Naming Committee, in honour of the then Princess Victoria. In line with the Adelaide City Council's recognition of Kaurna country, the square was officially referred to as Victoria Square/Tarndanyangga from 2002, modified to Victoria Square/Tarntanyangga by 2013, when Stage 1 of a major upgrade was done. The names "Tarndanya", sometimes recorded as "Dharnda anya" (or variant spelling) by colonial sources means "red kangaroo rock" and was reportedly the name used by the Kaurna people for "the site of South Adelaide" or the central-South Adelaide area; the local people whose central camp had been "in or near Victoria Square" were called the "Dundagunya tribe" by colonial sources. Tarndanyangga/Tarntanyangga is derived from the Kaurna word for "red kangaroo" – tarnta (tarnda) – and that for "rock" – kanya. The ending "-ngga" means it's a location, implying "in, at or on", which is often used in Kaurna place names. Many quarries were built on the southern bank of the Torrens, and Tarnta Kanya probably referred to one or more rock formations which were quarried, providing much of the stone for the large early buildings on North Terrace. Victoria Square/Tarndanyangga is still considered an important meeting place for Aboriginal Australians. It is the focus for many political and community-based Indigenous events, such as the National Sorry Day commemoration held by Journey of Healing (SA) on 26 May each