English: Animated map of Indo-European migrations. Sources:

• J.P. Mallory (1999) "In Search of the Indo-Europeans"
• D. Anthony (2007) "The Horse, The Wheel and Language"
• Allentoft et al. (2015) "Population genomics of bronze Age Eurasia", Nature, 11 june 2015, vol. 522
• Haak et al. (2015) "Massive migration from the steppe was a source for Indo-European languages in Europe", Nature, 522: 207–211

The animated map gives an overall impression; in the details, many things are not exactly right. The first migration into the Danube Valley, for example, did not proceed from the Yamna culture, which started almost a millennium later. But altogether, the idea is to give a general impression of the migrations. I hope a team of professionals (Reich, Anthony, have you got some students available?) will pick up the idea of using a GIF to communicate an overview of the IE-migrations, and create a really good GIF of it.