 Haplogroup I (M170), which is now relatively common and widespread within Europe, may represent a Palaeolithic marker – its age has been estimated at ~ 22,000 BP.While it is now concentrated in Europe, it probably arose in a male from the Middle East or Caucasus, or their near descendants, c. 20–25,000 years BP, when it diverged from its immediate ancestor, haplogroup IJ.At about this time, an Upper Palaeolithic culture also appeared, known as the Gravettian.