The Trojan War happened I think during that time.
The main reason of why the emperor sent out Zheng He was to increase the Chinese trade and the reputation of his nation.
What important information he brought back was the info on the wind directions, oceans currents, plants and animals he saw, different tribes and kingdoms that would be in for future trade projects.
Explanation:
British desire for natural resources, slave labors and political dominance brought about long-term effects to South Africa, the negativeeffects include widespread racial discrimination and economic exploitation, but there were few positive effects which were the advances in agriculture, mining industry and education.
