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.

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on this day in 1913, henry ford installs the first moving assembly line for the mass production of an entire automobile. his innovation reduced the time it took to build a car from more than 12 hours to two hours and 30 minutes.