Basque -

: The population has the highest recorded frequency of Rh-negative blood (roughly 35%) and one of the highest occurrences of Type O blood globally.

: Genetic studies suggest Basques are descendants of Neolithic farmers who mixed with local Mesolithic hunters and remained isolated from later migrations, such as those of the Romans and Moors. basque

The Basque people are a unique cultural and linguistic group residing in the western Pyrenees, spanning parts of north-central Spain and south-western France. They are widely regarded as one of Europe's oldest cultures, maintaining a distinct identity through millennia of isolation. : The population has the highest recorded frequency

: Despite historical suppression—most notably during the Franco regime—Euskara has seen a revival and remains a central pillar of Basque national identity. Genetic Distinctiveness They are widely regarded as one of Europe's

: They exhibit a lack of genetic markers from Indo-European groups and North African migrations that are common in neighboring Spanish and French populations. Summary of the Annual Report to the Basque Parliament 2024