Complex sentence: However, it was not observed uniformly in all the states1920s, Anzac Day became established as a National Day of Commemoration for the 60,000 Australians and 18,000 New Zealanders who died during the war.
Split into simpler sentences: However, it was not observed uniformly in all the states. During the 1920s, Anzac Day became established as a National Day of Commemoration for the 60,000 Australians and 18,000 New Zealanders who died during the war.