Australian Bicentenary was officially declared to be the Golden Wattle "Acacia pycnantha". The Gazettal was signed by the Governor General, Sir Ninian Stephen, on 19 August 1988. A ceremony was held on 1 September 1988 at the Australian National Botanic Gardens. The Minister for Home Affairs, Robert Ray, made the formal announcement and the Prime Minister's wife, Mrs Hazel Hawke, planted a Golden Wattle 1988 was also marked by the completion of many unique development projects such as the Bicentennial National Trail and on 9 May of that year, Queen Elizabeth II opened the New Parliament House in Canberra. As well as
International Museum Day both countries every year. In Lithuania, the year 2012 was declared as the Year of Museums, in honour of the bicentenary opening of the first public museums in the country. The Museu do Falso (Viseu, Portugal) opened on 18 May 2012, for International Museum Day. Visitors were able to discover the unique Museum of History, made from contributions by contemporary artists, working under the premise of "Simulacrum: What if a given event occurred differently from how it did?". This aimed to serve as a hub for cultural actors and citizens. In Côte d’Ivoire, IMD 2012 was celebrated in the structure