"Russian and Central Asian scholars working on the contemporary but very different Andronovo and Bactrian Margiana archaeological complexes of the 2d millennium b.c. have identified both as Indo-Iranian, and particular sites so identified are being used for nationalist purposes. There is, however, no compelling archaeological evidence that they had a common ancestor or that either is Indo-Iranian. Ethnicity and language are not easily linked with an archaeological signature, and the identity of the Indo-Iranians remains elusive."