In 1829 the whole of Australia is clamed who's territory?

In 1829, the entire territory of Australia was claimed by the British, with the establishment of the Swan River Colony in present-day Western Australia. This formalized British sovereignty over the continent, which had been claimed under the doctrine of terra nullius, meaning the land belonged to no one. The declaration led to significant impacts on Indigenous populations and their lands. This event marked the beginning of increased European settlement and colonization across Australia.