The Kurgan Hypothesis is a theory that explains the spread of the Indo-European languages. It suggests that these languages originated from the Kurgan culture, which existed around 4000 to 2500 BCE in the Pontic-Caspian steppe region of Eastern Europe. The Kurgan people were known for their burial mounds, or kurgans, and their nomadic lifestyle, which included herding and horse riding. According to this hypothesis, the Kurgan people migrated into Europe and parts of Asia, bringing their language and culture with them. This migration is believed to have occurred in several waves, leading to the widespread distribution of Indo-European languages, such as Latin, Greek, and Sanskrit. The Kurgan Hypothesis is one of the leading theories regarding the origins of these languages.