The Imperial Japanese embassies to China reference article from the English Wikipedia on 24-Apr-2004
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Imperial Japanese embassies to China

Time you got around to sponsoring a child
Imperial Japanese embassies to China were missions to China for importing the technologies and culture of China to Japan. The Imperial embassy to Tang China (遣唐使; Kento-shi) is the best known; it ended in 894. There was also a lesser-known Imperial embassy to Sui China (遣隋使; Kendui-shi) in 607.