 These mostly originate with the Sahelian kingdoms of the medieval period, such as that of the Akan, deriving from Bonoman (11th century) then the Kingdom of Ashanti (17th century).Ethnic groups are abundant throughout Asia, with adaptations to the climate zones of Asia, which can be the Arctic, subarctic, temperate, subtropical or tropical.The ethnic groups have adapted to mountains, deserts, grasslands, and forests.