Answer: 1. united 2. Asia and Eastern Europe 3. four khanates 4. Yuan 5. Sung
Step-by-step explanation:
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Genghis Khan (united) the Mongols. He then led them to build a vast empire across (Asia and Eastern Europe). The Mongol Empire split into (four khanates) after the death of Ögedai Khan. Later, Kublai Khan won a civil war to become the next Great Khan in the East. In 1271, he established the (Yuan) dynasty. He then successfully conquered the (Sung) dynasty of Southern China