Simplify the following text for a Grade 16 native English-speaking person.
Original: Although Federation is often regarded as the moment of `` independence '' of Australia from Britain , legally the Commonwealth was a creation of the British Imperial Parliament , through the Commonwealth of Australia Constitution Act 1900 ( Imp ) , which applied to Australia by paramount force .
Simplified: Although Federation made Australia independent of Britain , legally the Commonwealth was a creation of the British Imperial Parliament , through the Commonwealth of Australia Constitution Act 1900 ( Imp ) , which applied to Australia .