Historians work to methodically dissect the past to help us understand the present and avoid making similar mistakes in the future.
The base job of a Historian is to break down a historical events into parts to understand how the historical event or historical arc could have occurred as it did. This could range from "Why did the Japanese bomb Pearl Harbor" to "Why did the Union win the Civil War"
Each question has answers that can help future generations understand the implications of their actions.
B. KANGXI
Perhaps the greatest emperor in Chinese history, Kangxi took charge of the government while still in his teens and reigned for 61 years.
Xuanye was the name of the Kangxi Emperor. He was born in 1654 and his reign as emperor began when he was only 7 years old, from 1661 to 1722. However, his actual rule began when he turned 13 years old.