Steppe migrations shaped the origins of indo-European languages

Historian Patrick Wyman explains how the Indo-European language family, which includes Bosnian, English, Russian, and Hindi, originated from a common ancestor known as Proto-Indo-European.

Linguists use the comparative method to reconstruct this ancestor because it was never written down. This process involves systematically comparing related languages to identify shared vocabulary and grammar. German linguist August Schleicher first performed this systematic reconstruction in 1861.

While some researchers now distinguish Anatolian languages like Hittite as a separate early branch, the broader family tree traces back thousands of years to a specific group of people. Two main theories exist regarding where these people lived. The Anatolian hypothesis suggests they were early farmers who moved into Europe from the Fertile Crescent around 6000 BCE.

However, most researchers now favor a theory placing the homeland in the Pontic-Caspian steppe between the Carpathians and the Urals between 4500 and 2500 BCE. This region aligns with archaeological evidence of wheels, wagons, and wool production, which appeared around 4000 BCE. Genetic data published in Nature in February 2025 supports these movements. The study analyzed DNA from 428 individuals and identified the Yamnaya culture as a primary group of speakers. These people lived in wagons and moved with herds.

They expanded from Hungary to Kazakhstan by 3000 BCE. Their migrations and cultural exchanges influenced the development of various branches, including the Slavic languages, which share specific linguistic shifts with Indo-Iranian languages.