Comment on Climatic and environmental aspects of Mongol withdrawal from Hungary (2016)Comments−l-3yWhen Mongols Set Out to Conquer the World, There Was One Limiting Factor: Grass (154 points by benbreen 9 months ago) https://news.ycombinator.com/item?id=30886110
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When Mongols Set Out to Conquer the World, There Was One Limiting Factor: Grass (154 points by benbreen 9 months ago) https://news.ycombinator.com/item?id=30886110