Question: The Qin dynasty was divided into two periods because...?
Answer: (THIS IS A QUOTE)
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.
Hope this helps, sorry if not, have a good day. c;