*By civilization I mean a sedentary civilization with agriculture.
Kingdoms and states emerged independently in Eurasia, Sub-Saharan Africa, and the Americas, but were no indigenous states in Australia. Why is that?
This question is underpinned by some flawed assumptions. They've been addressed previously, for example in these responses from our FAQ:
What was the closest the Aboriginals of Australia got to creating a sort of city or village?, with u/Djiti-djiti
While the native Australian cultures never built cities, was it at least possible?, with u/Reedstilt