الانتشار التاريخي للعربة. التواريخ المعطاة في الصورة هي قبل الميلاد وتقريبية.
Indo-European isoglosses, including the centum and satem languages (blue and red, respectively), augment, PIE *-tt- > -ss-, *-tt- > -st-, and m-endings.
Frequency distribution of R1a1a, also known as R-M17 and R-M198, adapted from Underhill et al. (2009).
The development of the Kurgan culture according to Marija Gimbutas' Kurgan hypothesis.
Map of the approximate maximal extent of the Andronovo culture. The formative Sintashta-Petrovka culture is shown in darker red. The location of the earliest spoke-wheeled chariot finds is indicated in purple. Adjacent and overlapping cultures (Afanasevo culture, Srubna culture, BMAC) are shown in green.
Archaeological cultures associated with Indo-Iranian migrations (after EIEC). The Andronovo, BMAC and Yaz cultures have often been associated with Indo-Iranian migrations. The GGC, Cemetery H, Copper Hoard and PGW cultures are candidates for cultures associated with Indo-Aryan movements.