The Ainu people of Japan is notable for possessing almost exclusively Haplogroup D chromosomes In human genetics, Haplogroup D (M174) is a Y-chromosome haplogroup.D is believed to have originated in Africa some 50,000 years before present.It is found today at high frequency among populations in Tibet, the Japanese archipelago, and the Andaman Islands, though curiously not in India. http://realhistoryww.com/world_history/ancient/China_2.htm
Alexander Pushkin, the poet and founder of modern Russian literature, was ashamed of his black roots. A paranoid genius, he believed he was unattractive. His self-doubt and feeling of having a tainted ancestry contributed to his inability to accept that his beautiful wife, Natalya, was a faithful companion. The haunted poet expressed his conflicted emotions in an unfinished work, "The Negro of Peter the Great."