1. The White Australia Policy of 1901, restricted entry of non white people intp Australia, to maintain Australia as a white society
2. After World War 2, migrants came from Europe who were Christian and other denominations such as Orthodox came from Greece/Italy
3. The Vietnam War ended in 1975 also attracted several, 'boat people.' migrated from South East Asia. introduced multiculturalism
4. Refugees from Vietnam, Thailand, Cambodia brough Buddhism, Sri Lanka and India brought Hinduism and sikhism, Lebanon and Turkey brought islam