by Xinhua writer Zhao Wencai It was a breezy day in 750 A.D. when Abu Obeida, an Arab navigator, set sail from a bustling Middle Eastern port in Oman aboard a two-masted
by Xinhua writer Zhao Wencai It was a breezy day in 750 A.D. when Abu Obeida, an Arab navigator, set sail from a bustling Middle Eastern port in Oman aboard a two-masted
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