For 20 points, name this nation, home to Botany Bay.
Some people have used the Dieppe maps to argue that this country was originally discovered by the Portuguese. The Eureka Flag was the symbol of a rebellion which took place in 1854 during a gold rush in this country. Prime Ministers of this country include Robert Menzies, John Howard, and the current leader, Julia Gillard. An island belonging to this country was colonized in 1803 and named Van Diemen's Land. For 20 points, name this nation, home to Botany Bay.
Some people have used the Dieppe maps to argue that this country was originally discovered by the Portuguese.
Commonwealth of {Australia}