(a bit commercial)
Did you know that 25th April is a commemorative day in Australia, too? It's ANZAC day!! ( Anzac stands for Australian and New Zealand Army Corps). It marks the first landing of Australian troops (diggers) at Gallipoli in 1915, during the First World War. Australian soldiers formed part of the Allied forces, but they met fierce resistance from the Turkish defenders. Now memorial marches are held all over Australia in honour Aussies who died in all wars. The poppy is commonly used in wreaths on ANZAC Day. By the way, Australian celebrate the Remembrance Day, too: each year the 11th day of the 11th month at 11 am they observe a minute of silence to remember war veterans and those who died in all wars.
It's interesting to know about festivities in other countries, isn't it?
You'll find more information about the Centenary of the Federation,
the history of the flag, etc.
in the "links" page.