Anzac Day marks the anniversary of the first major military action fought by Australian and New Zealand forces during the First World War.[1] The acronym ANZAC stands for Australian and New Zealand Army Corps, whose soldiers were known as Anzacs. Anzac Day remains one of the most important national occasions of both Australia and New Zealand.[2] This is a rare instance of two sovereign countries not only sharing the same remembrance day, but making reference to both countries in its name.
The date, 25 April, was officially named Anzac Day in 1916; in that year it was marked by a wide variety of ceremonies and services in Australia and New Zealand, a march through London, and a sports day for the Australian and New Zealand soldiers in Egypt. The small New Zealand community of Tinui, near Masterton in the Wairarapa was apparently the first place in New Zealand to have an Anzac Day service, when the then vicar led an expedition to place a large wooden cross on the Tinui Taipos (a 1,200 ft (370 m) high large hill/mountain, behind the village) in April 1916 to commemorate the dead. A service was held on 25 April of that year.[4] In 2006 the 90th anniversary of the event was commemorated with a full 21-gun salute fired at the service by soldiers from the Waiouru Army Camp.
http://en.wikipedia.org/wiki/Anzac_Day