Answer:
The first inhabitants of Oceania are believed to have come from South East Asia.
Step-by-step explanation:
Oceania was still uninhabited during the Early Palaeolithic. Early human species such as Homo erectus do not seem to have crossed the Weber Line.
Pretty soon after the early modern man had left Africa and arrived in South Asia (about 100,000 years ago), the ancestors of the Aborigines reached Australia (possibly some 65,000 years ago).