 In the model, the first archaeological remains of the Indo-Europeans is the Yamna culture, which spread eastward creating the Sintashta culture (2100–1800 BCE), from which developed the Andronovo culture (1800–1400 BCE).Interaction with the BMAC (2300–1700 BCE) produced the Indo-Iranians, which split into Indo-Aryan and Iranian branches around 1800 BCE.The Indo-Aryans migrated to the Levant, northern India, and possibly Inner Asia.