important dates in australian history By dojograndma Period: Jan 24, 1770 to Jan 28, 2000 important dates in australian history Jan 25, 1770 captain cook discovered australia Jan 25, 1788 first fleet arrives in australia Jan 25, 1902 australia is federated Jan 25, 1915 battle of gallipoli Jan 25, 1942 japan bombed darwin Jan 25, 2000 sydney olympics