Qin shihuangdi helped unify by creating a

A single Chinese empire.

Explanation:

The first emperor of China, Qin Shi Huang Di was the king of Qin, one of the many Chinese states that kept waging war with each other for several centuries (Warring States period). He managed to build a powerful army with new weapons and new techniques and defeated all its rivals, unifying all Chinese lands for the first time in 221 BCE. He imposed uniform administrative standards, a single written language. The Western name China comes from his name Qin.

usually her father was the one that controlled it after the death of the husband

yes based on alexanders actions he deserved the title of "the great". his empire covered about 3,000 miles and he was able to establish the empire over a 13 year period of time. he was able to conquer many different places. he also defeated the persians. he conquered egypt and developed a city and named it after himself.