In Warrior States Period, there were seven warring states which were possessed each part of China territory. These Seven Warring States were the Qin, the Zhao, the Wei, the Han, the Qi, the Chu, the Yan
► Qin (west): The State of Qin was in the far west, in the Wei River valley within its natural fortress. The State of Qin was one of the state applied feudal governmental system since the Spring and Autumn Period. With its powerful strength among the seven states, the State of Qin finally unified China into one and governed it since 221 BC, which was referred to Qin Dynasty later.
► The Three Jins (center): Northeast of Qin, on the Shanxi plateau, were the three fragments of Jin: Zhao (north), Wei (center) and Han (south). Wei was the strongest and Han held the east-west stretch of the Yellow River that was the military gateway into Qin. The three states tended to expand eastward.
► Qi (east): On the highlands and peninsula of Shandong, was the wealthy State of Qi. Qi was a powerful state during the Spring and Autumn Period and Period of the Warring States in ancient China. Its capital was Linzi, now part of the modern day city of Zibo in Shandong Province.
► Chu (south): The State of Chu was in the south along the Yangtze. It had the largest land area but much of this was undeveloped frontier.
► Yan (northeast): Near Beijing was the relatively weak State of Yan. Late in the period Yan pushed northeast and began to occupy the Liaodong Peninsula.
Others: On the southeast coast near Shanghai was the minor State of Yue. In the far southwest in Sichuan were the States of Ba and Shu. These were non-Zhou states that were conquered by Qin late in the period. Between Shandong and Shanxi (literally 'Mountain-east' and 'Mountain-west'), that is, between Qi and the Three Jins, was the central plain with its dense population and many small states.
♦ Qin United the Broken Situation Finally
At the last, the State of Qin became the winner among these sevens states and unified China. With the beginning Han’s falling in 230 BC and Qi the last in 221 BC. the King of Qin assumed the title of First Emperor and established the first imperial dynasty in Chinese history.