The Song Dynasty succeeded in?

After two decades of sporadic warfare, Kublai Khan's armies conquered the Song dynasty in 1279, after the Southern Song suffered military defeat in the Battle of Yamen. The Mongol invasion eventually led to a Chinese reunification under the Yuan dynasty.

Explanation:

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people can eat food during that time

the supreme court can hear any case it wishes as long as four justices agree to hear it.

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