Australia Day is a national public holiday celebrated in Australia on January 26th each year to commemorate the arrival of the First Fleet of British ships at Port Jackson, New South Wales in 1788. Australia Day is celebrated in Australia, and by Australians living abroad.

Explanation

The answer given above explains the significance of Australia Day and the countries in which it is celebrated. The arrival of the First Fleet of British ships to Australia in 1788 had a lasting impact on the region and its people, introducing British law and displacing the Indigenous Australians.

It is important to understand the implications and consequences of the arrival of the First Fleet. This includes the displacement of Indigenous Australians and the introduction of British law and colonisation in the region. These effects still have an impact on Australia today, and understanding the history of Australia Day can help students to appreciate the ongoing legacy of the British colonisation of Australia.

Related topics could include the history of colonisation in Australia, the Indigenous people of Australia, and the ongoing impact of British colonisation on the country and its people. Students could also explore the history of the different states of Australia, and the various cultural celebrations and traditions associated with Australia Day.