Australia is a big island located in the southern hemisphere of the world. A long, long time ago, the land was first populated by Aboriginal people, who lived there for tens of thousands of years before European people came over from across the sea.
The Europeans started arriving in Australia in 1788, when the British government decided to turn the land into a new home for their prisoners - people who had done bad things like stealing, fighting, and being rebellious. The first group of British people to arrive in Australia were mostly men and soldiers, and they set up a colony in a place called Sydney.
But after some time, other people started coming to Australia too - not just prisoners, but free settlers who wanted to build a new life for themselves. Some of these people came from other countries that the British had taken over, like Ireland and Scotland. Other people came from countries like China, Greece, and Italy, looking for new job opportunities.
A lot of people also came to Australia from other places in Europe after the second world war. They were looking for safety and opportunity, and many wanted to start a new life away from the war-torn countries they had come from.
Over time, the population of Australia grew bigger and more diverse as more and more people arrived from all over the world. Today, Australia is home to people from many different countries and cultures. Some people still arrive in Australia looking for a fresh start, while others are born there and grow up in the country.
The story of immigration in Australia has been one of change, challenge, and growth. It shows that people from all over the world can come together and create a new community in a new place with their different cultures and customs.