The first European settlement in Australia was an event of overwhelming significance in Australian history, albeit its significance for the Aboriginal inhabitants of 1788 was profoundly different from its significance for the European settlers of that time. The ensuing two centuries have changed but not eliminated differences in the significance of the event for different people; indeed, the significance of the event has taken on new aspects as the descendants of Aborigines and of Europeans and of both have appraised that significance for themselves in the light of their own experiences and as immigrants from all parts of the world have made their appraisement in the light of the history and culture of their places of origin. Whatever significance one chooses to assign to the event, it was a turning point in the history of those who now make up the Australian nation. In 1788, a system of law and government, religious and ethical beliefs, a money economy, the institution of private property, an urban and agrarian society, and forms of literacy and numeracy that were previously unknown in this country were introduced. Those innovations set the course of modern Australian development and, of course, radically and for ever changed the life, religion, culture, laws and institutions of Australian Aborigines. Although it is arguable that, since the first European settlement occurred in New South Wales, the commemoration should be regarded properly as a State affair, the first European settlement has undoubted significance for the whole of Australia. Giving to the executive power of the Commonwealth the scope which I have described, that power undoubtedly extends to the organizing of the commemoration of the Bicentenary and the stimulation of "an enduring consciousness of the historical basis and significance of that commemoration". The significance to be attributed to the first European settlement, as contemporary experience shows, is one of the abiding concerns of the Australian people. As the Bicentenary can properly be seen as a matter for commemoration by the Commonwealth, the executive power of the Commonwealth extends to the organization of the commemoration of the Bicentenary, and the agency of the Authority is merely the administrative means by which that activity is to be carried into effect. Section 51(xxxix) empowered the Parliament to make a law in aid of that activity. Putting aside ss. 22 and 23 for the moment, the Act is supported by s. 51(xxxix) of the Constitution.