All the Australian colonies joined together as the Commonwealth of Australia on the 1st January 1901.
On 1 January 1901, the states of Australia joined at federation to become the Commonwealth of Australia. Australia appointed (and later elected) its first Prime Minister, and the Australian constitution came into effect.
ww1 started in July 28, 1914 and Australia joined because it was a colony of the british empire
Australia did not 'join' the British Empire, the British was the first westerners who set foot on Australia. They stuck the Union Jack down, and claimed Australia as theirs.
As part of the British Empire Australia joined WW1 with the rest of the UK
The Commonwealth of Australia was proclaimed on 1 January 1901. This was the date of Federation, when the six colonies joined together.
Australia became imperialized and colonized in 1788. On January 26, 1788, the first settlement in New South Wales was started by Captain Arthur Phillip and this date later became Australia Day.
On 1 January 1901, the Federation of Australia was brought into existence. The Australian colonies were joined to form the Commonwealth of Australia. The state of the Commonwealth of Australia was born with a vote to Federate with the Australian British colonies.
Australia is not joined to another continent.
The United Kingdom joined the European Union on 1 January 1973.
Georgia was the fourth state which joined the union on January 2, 1788. The last stat was Hawaii which joined the union in 1959 on August 21.
Alaska joined the union January 3rd 1959 followed by Hawaii August 21, 1959. The first state to join the U.A was Hawai, Alaska joined a little later.