Millions Of People Are Returning Home For The Weekend, China

The first Chinese dynasty that left historical records, the loosely feudal Shang (Yin), settled along the Yellow River in eastern China from the 17th to the 11th century BC. The Oracle bone script of the Shang Dynasty represent the oldest forms of Chinese writing found and the direct ancestor of modern Chinese characters used throughout East Asia. The Shang were invaded from the west by the Zhou, who ruled from the 12th to the 5th century BC, until their centralized authority was slowly eroded by feudal warlords. Many independent states eventually emerged out of the weakened Zhou state, and continually waged war with each other in the Spring and Autumn Period, only occasionally deferring to the Zhou king. By the time of the Warring States Period, there were seven powerful sovereign states, each with its own king, ministry and army.
The first unified Chinese state was established by Qin Shi Huang of the Qin state in 221 BC, who proclaimed himself as the "First Emperor" and created many reforms in the Empire, notably the forced standardization of the Chinese language and measurements. The Qin Dynasty lasted only fifteen years, as its harsh legalist and authoritarian policies soon led to widespread rebellion.
The subsequent Han Dynasty ruled China between 206 BC and 220 AD, and created a lasting Han cultural identity among its populace that extends to the present day. The Han Dynasty expanded the empire's territory considerably with military campaigns reaching Korea, Vietnam, Mongolia and Central Asia, and also helped establish the Silk Road in Central Asia.
After Han's collapse, another period of disunion followed, including the highly chivalric period of the Three Kingdoms. Independent Chinese states of this period such as Wu opened diplomatic relations with Japan, introducing the Chinese writing system there. In 580 AD, China was reunited under the Sui. However, the Sui Dynasty was short-lived after a failure in the Goguryeo-Sui Wars (598–614) weakened it.