culture. It spreads to south Caucasia. 8.4.            Fraxinus . Another Indo-European culture. It is related to Ash tree. 8.5.            Kambojas .The Kambojas ( Sanskrit ,  Kamboja ;  Persian : ?????‎, were kshatriya  tribe of  Iron Age India . Modern scholars conclude that the Kambojas were an  Avestan  speaking Eastern Iranian tribe at the boundary of