Duke Huan of Qi gave office to Guan Zhong, and Qi soon grew strong.
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Founded for 姜太公, 齐国 grew rich on salt and fish from the sea. Its capital 临淄 held the 稷下学宫, an academy where thinkers of every school debated. In 386 BC the Tian family took the throne from the ruling house of Jiang.