Answer:
Upon the First Emperor's death, China plunged into civil war, exacerbated by floods and droughts. In 207 BCE, Qin Shi Huang's son was killed, and the dynasty collapsed entirely. Chaos reigned until 202 BCE, when Gaozu, a petty official, became a general and reunited China under the Han Dynasty.
Explanation:
If you’re talking about the United States, the first president was George Washington.
Into many kingdoms
After the fall of Roman empire, Germanic people spread all over europe and established small kingdom that ruled over the fragment of what used to be Roman's territory.
They defined the rules that they imposed to these territories as the 'barbarian law'
He accomplished many things such as becoming a renound politician before becoming president.