The Qin dynasty unified China for the first time in its history, and it was one of the most powerful and influential dynasties in Chinese history. The dynasty was founded by Qin Shi Huang, who was the first emperor of China. The Qin dynasty was known for its strict legalism, which was a political philosophy that emphasized the importance of law and order. The dynasty also built many large-scale projects, including the Great Wall of China. The Qin dynasty was eventually overthrown by a peasant rebellion, but its legacy continues to this day.