Important Australian Dates By mstevenson Apr 19, 1770 Captain James Cook claims Eastern Australia for England Jan 26, 1788 The First Fleet tThe British colinized in Australia Dec 3, 1854 The Eureka Rebellion The miners rise against the british government Jan 1, 1901 Australia becomes a nation First government is formed Apr 25, 1915 ANZACs fight in Gallipoli Jan 24, 1942 Australia is attacked World war 2 spreads to australia Jun 10, 2012 Australia hosts the olympics