terra nullius
Quick Summary
Terra nullius is a Latin term meaning "nobody's land". It refers to territory that has not been annexed by any nation.1
Historically, this concept has been applied to lands that were considered uninhabited or whose inhabitants were not recognized as having a sovereign claim to the territory under European international law. The term is distinct from terra incognita, which simply means "unknown territory" and can refer to unexplored areas, whether they are legally claimed or not.12
The application of terra nullius has been a significant and controversial legal principle, particularly in colonial contexts, as it was used to justify the acquisition of land by European powers.1
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