Collection of facts about Qin's wars of unifcation

This post is a collection of facts about Qin's wars of unification (230 - 221 BC). There are 11 facts listed below. Source: Wikipedia

• Preceded by Qin conquering West Zhou in 256 BC
• Part of the Warring States period (c. 475 - 221 BC)
• Qin vs. Han, Zhao, Yan, Wei, Chu, Qi
• Led by Ying Zheng (Qin Shi Huang)
• Han conquered in 230 BC
• Zhao conquered in 228 BC
• Chu conquered in 223 BC
• Wei conquered in 225 BC
• Yan conquered in 222 BC
• Qi conquered in 221 BC
• Qin became ruling dynasty of China