Image:IE expansion.png
维基百科，自由的百科全书
此为最大尺寸。
IE_expansion.png (450 × 275 画素, 档案大小： 151 KB, MIME type: image/png)
Indo-European expansion 4000–1000 BC, according to the Kurgan hypothesis.
Even within the Kurgan hypothesis, there is considerable uncertainty, mainly depending on assumptions about the w:Tocharians, the w:Corded ware culture and the w:Beaker culture.
The central purple area is supposed to show early w:Yamna culture (4000–3500 BC); the dark red area could show expansion to about 2500 BC, and the lighter red area expansion to about 1000 BC.
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