1901
i know the answer it is 1901
1901
The Commonwealth of Australia Constitution Act went into effect on January 1, 1901, though it first became law on July 9, 1900. The capital of Australia is Canberra and the largest city is Sydney.
Commonwealth of Australia Constitution Act was passed by the British Parliament in 12900.
1787.
1950
The Australian Open is the first slam of the year, taking place in January.
the Australian federation took place on January 1st 1901, actually
1981
As of 2014, the constitution that is place in Brazil was written in 1987 and 1988. It was adopted as the law of the land in 1988.
The original US Constitution was finished on September 17, 1787. The Government began operating under the Constitution on March 4, 1789