1790  - 

The second fleet of convicts sets sail from England to New South Wales. 

1887  - 

The first express train runs between Melbourne and Adelaide as the two cities are linked by rail.

1955  - 

The board game 'Scrabble' makes its debut in Australia and the UK. 

1966  - 

A farmer in Tully, far north Queensland, reports finding a 'flying saucer nest'.

1966  - 

Australia's longest-serving Prime Minister, Sir Robert Menzies, resigns. 

1986  - 

The first known computer virus for PCs is released.