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#yamnaya culture #proto-indo-european #pie #kurgan #burial mound #horse domestication #wagon #archaeology #prehistory

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#proto-indo-european #kurgan hypothesis #pontic-caspian steppe #horse domestication #wheeled vehicles #yamnaya culture #pastoralism

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#Proto-Indo-European spread #kurgan hypothesis #yamnaya culture #PIE migration #horse domestication #language diffusion