Columbus's voyage to discover the new continent of the Americas has promoted the history of modern times. About 50,000 years ago, some safari people living in northern Asia entered the Americas from the Bering Strait frozen in the ice age. Some scholars have recently announced evidence that The Ming Dynasty navigator Zheng He discovered the American continent 72 years before Columbus. From which we can draw? ["Columbus' discovery is not significant after Asian nomads.", "Even if Zheng He's arrival in the Americas is confirmed, it is not as meaningful as Columbus.", 'The aforementioned scholars attempted to overturn the history of Asian nomads first arriving in the Americas.', "If Zheng He's been to the Americas is confirmed, Zheng He's achievements may be above Columbus."]