It seems the Ainu are considered indigenous because some have maintained their culture instead of assimilating into the larger group, which is unlike the Jomon and Yayoi people who many believe are the ancestors of modern Japanese people.
It seems the Ainu are considered indigenous because some have maintained their culture instead of assimilating into the larger group, which is unlike the Jomon and Yayoi people who many believe are the ancestors of modern Japanese people.
"Indigenous" is frequently used in a context where a people's rights to their ancestral lands are threatened. It is an assertion of their claim to places where they are threatened. In the case of the Ainu, much of Japanese colonization and colonialism was justified with the ideology that the Ainu were "dying race" or "disappearing". This was acompanied by the usual policies of social oppression and linguicide—taking them away from their parents to Japanese-only schools and beating or shaming them if they dared to speak the language of their parents.
Sort of. It's worth clarifying that "indigenous peoples" is a specific legalistic term which connotes more (less?) than just "indigenous". In that context the "Yamato people" as the dominant cultural group in Japan typically do not qualify as an "indigenous people". Confusing matters further, "indigenous" itself is often used in the same, more restrictive context.
Not what it means.
This is true in Australia and the US as well, the Aboriginals and Native Americans just came several thousand years before the next waves of settlement.
I'm certainly not claiming that 'indigenous' means their ancestors literally sprouted from that ground.
There are some other relevant characteristics, which make the definition a bit fuzzy.
The biggest one is that they need to have retained some identifiable aspects of their culture in the face of subsequent settlement.
But to a first approximation, first to settle - or at least being among the first to settle - is the primary basis for determining indigenousness.