What event happened after the Qin Dynasty collapsed? Lu Bang abandoned Legalism. Wu Di appointed his grandson emperor. A civil war broke out. The Great Wall was completed.

Answer: What happened after the Qin Dynasty collapsed?

Civil war broke out throughout China 205 BCE

After the Qin dynasty collapsed, chaos reigned until 202 BCE. Then China was united by Gaozu who rose to the position of a general and finally established the Han dynasty