Us destroyer had dropped the first death bomb. As well did the public's concern ran high.
Answer:
At first, their goal in the Americas was to find the Northwest Passage to Asia. When that search failed, they began to focus on the resources of North America itself as a possible source of new wealth and territory. ... Champlain's activities opened a rich fur trade with local Native Americans.
Xia dynasty,Shang dynasty, Qin dynasty, wei dynasty, Tang Dynasty